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Why is my dog burping, sick, and not eating with an upset tummy?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 9 years and 7 months old | 17 lbs

The last 2weeks buzz has been burping a lot his breath smells been sick once and has bouts of feeling sick , on and off I can see he is uncomfortable in his tummy as he gets restless then it goes , his poos are fine and is going normally although I have noticed that his poos have become thinner, He is eating but don’t seem to enjoy his food like he did , he is on Rimadyl which is on going for hip displysia and , I’ve found a hard lump on his rib a few days ago could ithat be why ? Thanks

1 Answer

Most Helpful Answer

Dr. Elizabeth

Answered By Dr. Elizabeth

Veterinarian

Published on October 9th, 2019

It sounds like Buster's tummy is upset. This could be due to many reasons including bacterial overgrowth, a medication reaction, stomach acid, dietary intolerance or perhaps an oncoming disease like kidney disease.
I recommend to play it safe and have Buster examined. The doctor may recommend to check his blood levels to make sure everything is ok internally. The vet may also try a bland diet, probiotic, recommend parasite testing or medication to soothe his tummy. I hope this helps and please feel free to post any additional questions.
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