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Why is my 7-year-old cat not eating, losing weight, and lethargic?

Updated on September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | unneutered

So I have a normal make cat who is 7 years old and since the past few days he has been acting weird, as in he is not having food or hardly having any, he has become really thin and he sleeps all day on one chair. He drank some milk and vommitted twice, later we offered him some fish but he refused to have it. Doctor I would be thankful if you gave me some advice.

1 Answer

Most Helpful Answer

Dr. Elizabeth

Answered By Dr. Elizabeth

Veterinarian

Published on June 11th, 2019

Poor Mickey! It definitely sounds like he is feeling terrible. Just like people, there are many conditions that can make pets feel sick. This could range from parasites to cancer. 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. The doctor will likely want to check the thyroid, kidney and blood sugar levels to looks for evidence of renal disease, hyperthyroidism or diabetes since these three conditions will all cause weight loss. A physical exam is the only way to start narrowing down the causes. I hope Mickey starts feeling better quickly! Please feel free to post any additional questions!
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