I have two cats, aged 5 and 3, who have been living together for almost three years and get along together very well. This morning, I took the older one to be groomed and, upon returning home, the young one began growling as soon as the other approached him. A few hours later, he still does it, and even growls when my girlfriend or I try to cuddle him. What’s befuddling is that he has always been very friendly and likes to be cuddled.
He’s not in a fighting mood or anything, just staying there then growling and going a few feet away when we get near. I might add that for the last few days, he has sometimes looked frightened by nothing in particular around the house and unusually aware of his environment, smelling everything.
Anybody know what could be the cause of this sudden behavior? Thanks for helping.