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Why does my old dog shake, vomit, and sleep all day after dark?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 8 years and 6 months old | 20 lbs

My dog, 8 yrs old, shakes violently pulls away from me, but stops when lights go off. He only does 8n the evening and it's been recent, he will also vomit throughout the night. And sleep all the next day. What could be wrong with him?

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1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on April 6th, 2020

Poor Bear. He sounds sick, and his symptoms could be caused by a systemic illness, infection, or injury. I'm concerned this is going on, and I think it's best you take him into a vet today. To help diagnose what is causing his symptoms, the vet can do a geriatric blood panel and urinalysis. Once a cause is found, the vet can discuss treatment options. I hope this helps!

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