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Why is my cat sneezing, lethargic, not eating, and has yellow poop?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 2 years and 2 months old | 10 lbs

My female cat has been sneezing a lot lately and showing symptoms of lethargy. She's been eating less than normal and had a yellow bowel movement this morning.

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on May 27th, 2017

Poor Mocha! She is likely congested, and when a cat is congested, they won't eat because they can't smell their food. Gently heat up really smelly wet food such as sardine or fish based to try to tempt her to eat. Her yellow bowel movement could be related to the decrease in food. She could be suffering from a respiratory infection causing her symptoms, and I would have her seen by a vet on Monday. She may benefit from medications, which the vet can prescribe for her. I can also give you some home remedies for Mocha which will work in conjunction with medications from your vet. First, you can try starting her on an L-lysine supplement - this is an amino acid that has been shown to help the immune system fight off respiratory infections more effectively. Enisyl and Viralys are both good brands, and can be purchased over the counter without a prescription - just follow the dosing instructions on the label based on your cat's weight. If she's congested, you can also try using a humidifier or bringing her into the bathroom with the door closed while you take a hot shower - the steam and humidity help to break up congestion and temporarily relieve symptoms associated with respiratory infections.

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