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My cat is aggressive after vet visit. Is she in pain or stressed?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Female | spayed | 3 years and 1 month old | 11.6 lbs

I brought my cat to the vet 5 days ago because her stomach was hard. She has been eating a lot more lately. They wanted her to not eat for 12 hours so I took her to my parents house. She was much better so I brought her back home. She has been good up until yesterday. She was attacking my boyfriend and I. She’s hissing at the other cats. She is growling and is lounging at us. She has never acted like this before. She’s always so calm. Do you think she’s in pain? Our vets are booked due to COVID.

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on April 27th, 2020

This happens a lot when one cat is taken from the others and then re-introduced. They have to figure out who is the boss all over again. I think she is just stressed from all the movement. I suggest you get some Feliway Multicat Diffusers (happy cat pheromones) to use in the house and just try not to stress her too much. Leave her be and don't force interaction. https://worldtails.securevetsource.com/itemView/view/198944_HomeDelivery.pml?productId=117322

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