Why Is My Dog Shaking After Throwing Up? Causes & What To Do

If your dog is shaking after throwing up, it can be a concerning sight for any pet parent. Dogs shake after throwing up for several reasons, including nausea, pain, shock, fever, or the underlying cause of their vomiting. This article will delve into the various potential causes of your dog’s tremors and shivers post-vomit and outline the crucial steps you should take to help your canine companion.

Experiencing a dog trembling and nauseous is a sign that something is not right. When your dog is vomiting and shaking uncontrollably, it’s a clear indicator of distress. Let’s explore why this happens and how you can provide the best care.

Deciphering Dog Tremors After Vomiting

Seeing your dog shake after they’ve been sick can be frightening. It’s natural to worry when your furry friend seems unwell. There are several common reasons why a dog might tremble after vomiting.

Physical Responses to Illness

Vomiting is a forceful expulsion of stomach contents, and it can be physically taxing on a dog’s body. The act itself can lead to:

Muscle Fatigue: The abdominal muscles, diaphragm, and even the entire body engage during vomiting. This strenuous effort can leave your dog feeling weak and shaky afterward.
Dehydration: Vomiting, especially if it’s frequent or severe, can lead to significant fluid loss. Dehydration can manifest as weakness and tremors.
Electrolyte Imbalance: Vomiting can also cause the loss of essential electrolytes like sodium, potassium, and chloride. Imbalances in these vital minerals can affect muscle and nerve function, leading to shaking.
Low Blood Sugar (Hypoglycemia): If your dog has been vomiting and not eating, their blood sugar levels can drop. Low blood sugar can cause weakness, disorientation, and tremors.

Internal Discomfort and Pain

The underlying cause of the vomiting often contributes to the shaking. Many conditions that cause vomiting also cause discomfort or pain, which can trigger a stress response leading to shaking.

Gastrointestinal Upset: Simple indigestion or a mild stomach bug can make a dog feel generally unwell, leading to nausea and a shaky feeling.
Pain: If your dog has ingested something that is causing internal pain, such as a foreign object or if they have an inflammatory condition, the pain itself can cause them to shake.
Gastrointestinal Obstruction: This is a serious condition where something blocks the digestive tract. It causes severe pain, vomiting, and often leads to shock and tremors.

Emotional and Psychological Factors

Sometimes, the shaking isn’t purely physical but also a response to the emotional stress of being sick.

Anxiety and Fear: Dogs can become anxious or fearful when they feel unwell or when they are in an unfamiliar or stressful situation, such as at the veterinarian’s office. This emotional response can manifest as shaking.
Post-Vomit Anxiety in Dogs: The experience of vomiting can be unpleasant and even traumatic for some dogs. They may associate the feeling with sickness and react with anxiety and shaking.

Underlying Medical Conditions

The most serious causes of shaking after vomiting are often linked to significant underlying medical issues.

Infections: Bacterial or viral infections affecting the gastrointestinal tract or other bodily systems can cause vomiting, fever, weakness, and tremors.
Toxins and Poisoning: Ingesting toxic substances is a common cause of vomiting and can lead to a wide range of symptoms, including shaking, convulsions, and neurological issues.
Pancreatitis: This inflammation of the pancreas is very painful and often results in vomiting, lethargy, and abdominal pain that can cause a dog to tremble.
Kidney or Liver Disease: These organ failures can lead to a buildup of toxins in the body, causing nausea, vomiting, and general malaise that might include shaking.
Neurological Issues: While less common, some neurological disorders can cause vomiting as a symptom, alongside tremors or seizures.

Common Causes of Dog Shaking After Being Sick

When you notice your dog shaking after being sick, it’s important to consider what might be happening internally. The causes can range from mild upset to serious medical emergencies.

Gastrointestinal Issues

Indigestion: Sometimes, a dog eats something that doesn’t agree with them, leading to vomiting. The general feeling of being unwell and the stomach discomfort can cause them to shake.
Food Allergies or Sensitivities: If your dog has eaten something they are allergic to, they might experience vomiting and other symptoms like weakness or tremors.
Dietary Indiscretion: Eating garbage, spoiled food, or non-food items can irritate the stomach and lead to vomiting and subsequent weakness or shaking.
Gastritis/Gastroenteritis: Inflammation of the stomach lining (gastritis) or stomach and intestines (gastroenteritis) is a frequent cause of vomiting. This can be due to infections, dietary issues, or stress, and often leaves the dog feeling weak and shaky.
Foreign Body Ingestion: If a dog swallows a toy, bone, or other object, it can irritate or block the digestive tract. This can cause vomiting, severe pain, and the dog may shake due to the discomfort and distress.

Systemic Illnesses and Infections

Viral Infections: Diseases like parvovirus or distemper can cause vomiting, along with other severe symptoms including tremors.
Bacterial Infections: Various bacterial infections can affect the gastrointestinal system, leading to vomiting and a general sense of illness that might include shivering.
Parasites: Intestinal parasites can cause vomiting and diarrhea, making the dog feel unwell and potentially shaky.
Fever: When a dog has a fever, their body temperature rises, which can cause them to shiver and shake as their body tries to regulate its temperature. Vomiting can be a symptom accompanying fever from various illnesses.

Toxin Exposure and Poisoning

Ingestion of Poisons: Many household toxins, plants, and chemicals are poisonous to dogs. Symptoms can include vomiting, and neurological effects like tremors or seizures. If your dog is shaking and vomiting blood, this is a critical sign of severe poisoning or internal damage.
Medication Overdose/Reactions: Accidental ingestion of human medication or an adverse reaction to prescribed medication can cause vomiting and shaking.

Metabolic and Organ-Related Causes

Kidney Disease: Compromised kidney function can lead to a buildup of toxins, causing nausea and vomiting. The overall ill health can also result in weakness and shaking.
Liver Disease: Similar to kidney disease, liver problems can cause vomiting due to toxin accumulation. The dog might appear listless and shaky.
Pancreatitis: Inflammation of the pancreas is a painful condition that causes vomiting, abdominal pain, and can lead to shock, which often includes trembling.
Addison’s Disease (Hypoadrenocorticism): This endocrine disorder affects the adrenal glands and can cause vomiting, lethargy, and weakness. In severe cases, it can lead to tremors.
Diabetes Mellitus: Uncontrolled diabetes can lead to diabetic ketoacidosis, a serious condition that can cause vomiting, lethargy, and weakness.

Neurological Conditions

Seizures: While not directly a cause of vomiting, a dog might vomit during or after a seizure. Seizures are characterized by involuntary muscle contractions, which can appear as shaking or convulsions.
Brain Tumors or Injuries: These can affect various bodily functions, including appetite, digestion, and motor control, potentially leading to vomiting and tremors.

Other Contributing Factors

Heatstroke: Overheating can cause dogs to pant excessively, become nauseous, vomit, and even experience tremors or collapse.
Shock: Any severe illness, injury, or trauma can put a dog into shock. Symptoms of shock include rapid breathing, pale gums, weakness, and shaking. Vomiting can occur as the body struggles to cope.
Pain: Intense pain from any source, whether it’s an injury, an internal issue, or a severe stomach ache, can cause a dog to tremble.

Recognizing Serious Signs: When to Worry

While occasional vomiting followed by mild shakiness might not be an emergency, certain signs indicate that your dog needs immediate veterinary attention.

Red Flags to Watch For

Vomiting Blood: If you see any blood in your dog’s vomit, this is a serious sign. It could indicate internal bleeding, ulceration, or damage to the esophagus or stomach. Dog shaking and vomiting blood requires urgent care.
Frequent or Continuous Vomiting: Vomiting more than once or twice in a short period, or if it continues for several hours, is concerning.
Lethargy and Weakness: If your dog is not just shaky but also extremely tired, unresponsive, or has trouble standing, it’s a sign of a more severe problem. Dog weak and shaking after throwing up needs prompt medical evaluation.
Diarrhea (Especially Bloody): Vomiting combined with severe diarrhea, particularly if the diarrhea contains blood, suggests a serious gastrointestinal issue.
Abdominal Pain: If your dog cries when their belly is touched, appears bloated, or their abdomen looks distended, it could be a sign of serious internal problems like an obstruction or pancreatitis.
Difficulty Breathing: Any breathing distress alongside vomiting and shaking is a critical emergency.
Collapse or Loss of Consciousness: If your dog passes out or seems to be on the verge of collapsing, seek immediate veterinary help.
Neurological Symptoms: Symptoms like seizures, disorientation, or loss of coordination accompanying vomiting and shaking are very serious. Dog convulsions after vomiting are a dire sign.
Dehydration Signs: Sunken eyes, dry gums, and loss of skin elasticity can indicate significant dehydration, which can be a consequence of vomiting and requires veterinary intervention.
Suspected Toxin Ingestion: If you know or suspect your dog has eaten something poisonous, call your vet or an animal poison control center immediately.

Interpreting Dog Vomiting and Shaking Uncontrollably

When a dog is vomiting and shaking uncontrollably, it suggests a significant level of distress and potential systemic involvement. This level of shaking, often described as tremors or even a full-body tremor, can be indicative of pain, severe nausea, or a neurological response to a serious underlying condition.

What to Do When Your Dog is Shaking After Vomiting

Your immediate response can make a significant difference in your dog’s recovery.

Immediate Steps at Home

Remove Food and Water: For a few hours (e.g., 8-12 hours), withhold food to allow your dog’s stomach to rest. If your dog is only mildly ill, you can offer small amounts of water to prevent dehydration. However, if they keep vomiting even water, cease offering it and contact your vet.
Keep Them Comfortable and Quiet: Provide a calm, quiet environment. Minimize stress and avoid excessive handling.
Monitor Closely: Keep a very close eye on your dog for any of the red flag symptoms mentioned above. Note the frequency and appearance of vomit, any diarrhea, changes in behavior, or other symptoms.
Check for Dehydration: Gently pinch the skin on your dog’s back. If it doesn’t snap back quickly, they might be dehydrated. You can also check their gums; they should be moist and pink.

When to Seek Veterinary Care

It cannot be stressed enough: always err on the side of caution. If you are worried, or if your dog exhibits any of the serious signs, contact your veterinarian immediately.

Call Your Vet: Even if symptoms seem mild, it’s best to get professional advice. Describe all symptoms accurately: what was vomited, how many times, the dog’s activity level, and any other changes.
Prepare for the Vet Visit: If your vet recommends bringing your dog in, gather the information you’ve been monitoring. If possible and safe, bring a sample of the vomit or any foreign object you suspect your dog ingested.

Veterinary Diagnosis and Treatment

At the clinic, your veterinarian will perform a thorough examination, which may include:

Physical Examination: Assessing hydration, temperature, heart rate, and abdominal palpation for pain or masses.
Bloodwork: To check for infection, organ function (kidneys, liver), electrolyte levels, and blood sugar.
Urinalysis: To assess kidney function and look for signs of infection.
Fecal Examination: To check for intestinal parasites.
X-rays or Ultrasound: To look for foreign objects, obstructions, or signs of internal disease.

Treatment will depend entirely on the diagnosis but may include:

Fluid Therapy: Intravenous (IV) fluids to combat dehydration and correct electrolyte imbalances.
Anti-nausea Medications: To settle the stomach and stop vomiting.
Anti-diarrheal Medications: If diarrhea is present.
Antibiotics: If a bacterial infection is suspected.
Pain Management: For conditions causing significant pain.
Deworming: If parasites are found.
Surgery: In cases of foreign body obstruction or other surgical emergencies.
Special Diet: A bland diet might be recommended once vomiting has stopped.

Fostering Recovery: Post-Vomit Care

After your dog has received veterinary care or if their symptoms were mild and resolved at home, a period of careful convalescence is necessary.

Reintroducing Food and Water

Start Slow: Once your vet gives the go-ahead, begin by offering small amounts of water. If your dog keeps it down for a few hours, you can offer a small meal of a bland diet.
Bland Diet: Common bland diets include boiled, plain chicken or turkey breast (no skin or bones) mixed with plain, cooked white rice. Some vets recommend prescription gastrointestinal diets.
Small, Frequent Meals: Offer small portions of food multiple times a day rather than one or two large meals. This is easier on a recovering digestive system.
Gradual Transition: Gradually transition back to your dog’s regular food over several days, mixing increasing amounts of the regular food with the bland diet.
Monitor Closely: Watch for any return of vomiting or diarrhea. If it occurs, revert to the bland diet and consult your vet.

Rest and Observation

Plenty of Rest: Ensure your dog has a comfortable, quiet place to rest. Avoid strenuous activity.
Continued Monitoring: Keep an eye on your dog’s overall well-being, appetite, thirst, and any changes in stool or urine.
Follow Vet’s Instructions: Adhere strictly to any medication schedules or dietary recommendations provided by your veterinarian.

Frequently Asked Questions (FAQ)

Q1: Why is my dog shaking and nauseous?
A: Your dog might be shaking and nauseous due to a variety of reasons, including gastrointestinal upset, infections, pain, ingestion of toxins, or other underlying medical conditions. The nausea itself can cause a feeling of weakness and trembling.

Q2: Can anxiety cause a dog to shake after vomiting?
A: Yes, post-vomit anxiety in dogs can occur. The unpleasant experience of being sick can be distressing, leading to fear or anxiety that manifests as shaking.

Q3: My dog was gagging and shaking after eating. What could be wrong?
A: Gagging and shaking after eating can indicate a range of issues, from swallowing air or something irritating their throat to more serious problems like an impending obstruction or a reaction to the food itself. It’s advisable to consult a vet if this is recurrent or severe.

Q4: Is it normal for a dog to be weak and shaking after throwing up?
A: While some mild shakiness can occur due to the physical exertion of vomiting or dehydration, significant weakness and shaking suggest a more serious issue. It’s important to assess for other symptoms and seek veterinary advice if the weakness is pronounced or persistent.

Q5: My dog is vomiting and shaking uncontrollably. Should I go to the vet immediately?
A: Yes, if your dog is vomiting and shaking uncontrollably, it’s a sign of significant distress and potential medical emergency. You should seek immediate veterinary attention.

Q6: What are some causes of dog tremors after vomiting besides illness?
A: While illness is the most common cause, extreme stress or fear can also lead to tremors. However, in the context of vomiting, tremors are usually linked to the physiological effects of the illness itself or its underlying cause.

Q7: My dog is shivering post-vomit. Is this a sign of a fever?
A: Shivering or shivering post-vomit can be a sign of a fever as the body tries to regulate its temperature. However, it can also be due to pain, shock, dehydration, or general weakness. A vet can determine the cause.

Q8: What if my dog is shaking and vomiting blood?
A: Dog shaking and vomiting blood is a critical medical emergency. It indicates severe internal bleeding, ulceration, or damage. Your dog needs immediate veterinary care.

Q9: My puppy is shaking after vomiting. Is this more serious than in an adult dog?
A: Yes, puppies are more vulnerable to dehydration and hypoglycemia due to their smaller size and developing systems. Shaking after vomiting in a puppy is often more serious and warrants immediate veterinary attention.

Q10: What is the most common cause of a dog trembling and nauseous?
A: The most common causes of a dog trembling and nauseous are typically gastrointestinal issues like gastroenteritis, dietary indiscretion, or ingestion of something that irritates the stomach. However, it’s crucial to rule out more serious conditions.

Conclusion

Observing your dog shaking after throwing up can be distressing, but by understanding the potential causes and knowing when to seek professional help, you can ensure your canine companion receives the care they need. Always prioritize your dog’s well-being, and don’t hesitate to contact your veterinarian if you have any concerns about their health. Prompt diagnosis and treatment are key to helping your dog recover and return to their happy, healthy selves.