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Help! My cat is vomiting after we got a new kitten. What's wrong?

Updated On September 23rd, 2025

Pet's info: Cat | Bengal | Female | unspayed | 10 lbs

We recently just added a new kitten to the house, #3. One cat is fine but the other has vomited 5 times in the last few hours. In it was food, then treats, then water, and now orange tinted. We think it is nerves. She still will play with us. She hisses at the new kitten. We have not seen her eat or drink or use the bathroom. Cat is female and not spayed, just came out of heat 1 week ago.

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on February 20th, 2019

I'd put Athena in her own room for now (make sure she has water, a little box, and food in there), and try a home remedy to see if that works. I recommend withholding food for 12-24 hours, then feed a bland diet of boiled white meat chicken (no bones) in small amounts several times a day for a couple of days. Then slowly add back in her normal diet. If the vomiting continues in the absence of food, she vomits the bland diet, develops diarrhea, stops drinking water, starts vomiting water, or becomes very lethargic, she will need to see a vet right away. I hope this helps!

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