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Why is my cat lethargic, not eating, vomiting, and drinking a lot?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 4 years and 2 months old | 13 lbs

I have a 4 year old male cat who has stopped eating, I switched his food, but now he is losing weight and has occasionally vomited over the last 2 weeks, as of friday he is lethargic, and drinking excessively. I am giving him pedialyte, but at a lose on what else to do. I am taking him to the vet in the am, any advise until then?

1 Answer

Most Helpful Answer

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Answered By Ann Dion, DVM

Veterinarian

Published on April 30th, 2017

Hello. It sounds like Tuxx is very sick. If there is a 24hour clinic in your area I recommend taking him now. He could have many conditions however both renal disease and diabetic ketoacidosis are possible from the history you have given, and these can be life threatening if not addressed. DKA could result in death tonight if he crashes. If tonight is not possible to get him to the vet just try to get as much fluid into him as possible without risking him aspirating (fluid going into yhe lungs) and offer any food he will eat. Good luck with him!

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