My dog is trembling and shaking and won't eat or drink. What's wrong? Pet's info: Dog | Mixed Breed | Male | neutered | 6 years and 3 months old

Hi there. With what you are describing I would recommend taking him to the vet as soon as you can. Lack of appetite can be a serious sign and shaking is typically when they are in discomfort or pain. Either way of the vet should examine him and find out exactly what’s wrong and get you some medication to make him feel better. Best wishes and I hope he is feeling better soon.

It sounds like Lola may have an upset stomach. I would recommend bringing her to your veterinarian in the morning if she is doing ok throughout the night. If she gets worse overnight then I recommend bringing her to emergency. It may be a simple intestinal upset but she can also have a foreign body or even pancreatitis. Thank you for using Petco Pet Education Center, formerly Petcoach.

Poor Dexter! The symptoms you describe are usually caused by some type of pain or discomfort, but it's hard to say more specifically what might be wrong without being able to examine him in person. He may have back or neck pain due to a "slipped" or herniated disc, abdominal pain due to an upset stomach, or he may have been injured somehow. Since it sounds like Dexter is quite uncomfortable, I would really recommend taking him to a vet today - he/she can do a complete physical exam to help determine where he might be painful, and may also recommend x-rays or other testing if needed to diagnose the problem.

Why is my dog trembling, shaking, and not eating or drinking?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | neutered | 6 years and 3 months old

My dog is trembling and shaking and won't eat or drink. What's wrong?

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Answered By Dr. Melanie, BVSc MS 102

Veterinarian

Published on August 10th, 2016

Poor Harlow! She sounds like she is feeling quite ill. The trembling and [shaking](https://www.petcoach.co/article/why-is-my-dog-shaking-most-common-reasons) could be caused by pain, and the not eating and drinking could be caused by a [foreign body](https://www.petcoach.co/article/7-things-you-should-know-about-foreign-bodies-in-dogs), severe GI illness, or [pancreatitis](https://www.petcoach.co/article/pancreatitis-inflammation-in-dogs). Because she isn't eating or drinking, I'm recommending you take her into your vet right away. Not drinking can lead to dehydration, which may complicate any underlying condition(s). Your vet can determine what is causing these symptoms, and how best to treat it. Please take her into your vet today.

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Why is my dog trembling, shaking, and not eating or drinking?

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