Change in behavior
Male cat who is 8 years old and is neutered.
I took my cat the the vet 3 weeks ago and ever since he came back home he's been agitated and growling and hissing at not only myself and my mother but also our other cat. He seems angry and doesn't want us to touch him or even pick him up. 954
He is also treating our other cat like he did when we first were introducing them 9 months ago. When she's in his presence he snorts and growls and hisses and if we try to interact with him while she is around his takes his aggressions out on us. He is acting like a new cat is in the house again.
I did take the other cat to the vet about a month ago 4 times for an emergency so I thought maybe her scent might be off but his aggression only started that I noticed after we took him for his yearly work up. 954