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Why is my dog twitching, shaking, hiding, aggressive, and not eating?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua | Male | unneutered | 25 lbs

I have a tea cup chihuahua whos maybe 7 years old and recently when I touch his lower back he starts twitching it and I noticed his legs sometimes shake and he breathes much louder and faster, I imagine this is what a dog havinf a panic attack would look like. He started isolating himself in my closet and gets aggressive when we try to take him out, he doesn’t eat anywhere near as much as he use to.

1 Answer

Most Helpful Answer

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Answered By Jessica Desrosiers

Veterinary Technician

Published on April 21st, 2020

That does sound like Brownie is nervous about something. If this is a new, sudden behavior change, I would have him examined by your vet ASAP. Sometimes, underlying illnesses or pain can cause a dog to change their behavior, and if he reacts in pain when touched in a certain spot this may be the case. If he checks out healthy, looking for other triggers that could be causing stress such as new people or pets in the home, changes to routine, etc, may help you figure out the cause so you can work on helping him feel better.

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