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My cat is vomiting more, not eating, and acting unwell. What's wrong?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 3 years and 5 months old

Hi My cat Leo will be turning 3 in December. He sometimes vomits after eating grass and then continues being a playful cat. How for the first time ever, he has visited twice in a day (usually only vomits once in a day). He has not eaten anything since last night and is also not himself, as in doesn’t want to play with his usual toys, doesn’t want any treats or even sprint towards to door when opened (he’s an indoor cat). At the moment he wants to be left alone and is sleeping. Please advice!

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1 Answer

Most Helpful Answer

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Answered By Emily Luisana DVM

Veterinarian

Published on June 30th, 2018

Hello! I am sorry to hear that Leo is not himself. Although I hope his signs are nothing serious, what you are describing warrants further investigation. Cats are adept at hiding illness so if he is vomiting, not eating and unplayful, I am worried he is trying to tell us he doesn't feel well. A good exam to survey his temperature, heart/lungs, and internal organs would be a good start and I would recommend labwork as well to screen for infection, inflammation and liver/kidney/pancreatic problems. His current issue may be unrelated to his history of vomiting, but regardless of his current illness I am also concerned that he typically vomits once a day. This may be related to behavioral issues like gorging but I also see this in cats with irritable bowel syndrome and food allergies, among other issues. I hope it is nothing serious but I think you are right to be asking questions and I recommend you take him in for diagnostics! I hope this is helpful!

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