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Why is my mellow cat suddenly hissing, lethargic, and not eating?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | 5 years and 10 months old | 11 lbs

My cat is very mellow and this evening started hissing and is lethargic and not eating

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1 Answer

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on August 9th, 2019

Batman likely does not feel good and could even be in pain. Just like people, there are many conditions that can make pets feel sick. This could range from bacterial over growth to intestinal blockage. Also like us, diseases are best addressed early and this may result in a better prognosis. I recommend to have him examined by the veterinarian today. The doctor will need to learn the underlying cause in order to give appropriate treatment. Bring in a stool sample in case the doctor needs to test it. Batman could even have something like a broken bone or a back injury. I hope Batman starts feeling better quickly! Please feel free to post any additional questions!

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