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My cat overate, threw up, is lethargic, and won't eat. What's wrong?

Updated on September 23rd, 2025

Pet's info: Cat | Red Point Siamese | Male | neutered | 10 lbs

Hi, I believe my cat has a stomach ache, most likely from overeating. We were leaving for 1.5 days and left out two days of food and he ate it all instantly. When we got home he looked sick and he threw up on the carpet (looked like mostly his dry food). He was very lethargic, weak, and did not want to leave his bed. After 24 hours of not eating we tried to feed him wet food but we regurgitated the food an hour later. He seems to be getting his energy back, but we are worried about him not eat

2 Answers

Most Helpful Answer

Claudia Fioravanti

Answered By Claudia Fioravanti

Veterinarian

Published on November 29th, 2018

Hi, I think it would be a good idea to have Snowden checked over. He might be suffering with a touch of pancreatitis.It could also be just a tummy upset from eating too much, but some medications will help him get back on truck promptly. Thank you for using Petco Pet Education Center, formerly Petcoach !
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Related Answers from Veterinarians

  • Answered By Maria DVM

    Veterinarian

    Published on August 30th, 2018

    I highly recommend taking Paraki to a veterinarian. He could have a foreign body, pancreatitis or even a virus. He needs supportive care and diagnostics to determine what is going on with him. Thank you for using Petco Pet Education Center, formerly Petcoach.

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    1Pet Parents found this answer helpful

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