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My dog is suddenly scared, shaking, and tense. Is it his food?

Updated On September 23rd, 2025

Pet's info: Dog | Jack Russell Terrier | Male | neutered | 19 lbs

Hi. I stopped feeding my dog blue buffalo wet canned food because of its recalls and i didn't want to risk his heath. I switched to whole earth farms canned food and my dog loves it. The problem is that I started to noticed a change in his behavior. He has become very shy and he's scared to go outside. He has NEVER had this problem. He's with a sitter right now and they informed me that he's shaking a little and very tense. This has also never happened before. Hes always ok with the sitter.

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1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on August 21st, 2017

Hi there! Thanks for using Petco Pet Education Center, formerly Petcoach! This is unlikely to be due to his diet. Shaking and being tense are fairly non-specific clinical signs. This could be perhaps due to an outside noise or something that occurred that is causing him stress such as a new animal or person in the house. I would just monitor him closely for now. If it does not resolve by tomorrow, then have him evaluated by your veterinarian to rule out a medical issue such as pain that could explain the shaking. It is likely that he will be fine. He is adorable by the way! Have a good evening!

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