While back I posted about my cat Tom, he did infact have a stone in his stomach, so he had surgery to remove it and now hes healthier and happier than I am. Now my moms cat Sid, he used to be afraid of me for some reason. I never did anything to him and every once in a while he would let me pet him, but most of the time he would run and hiss whenever I would pick him up. While back he began to pee in the restroom on the floor and in the dining room. He never did that before. We talked to our pediatrician and he said it could be just a behavioral problem since we recently moved into a new houe after living in an apartment for many many years. ANd the neighborhood has a bunch of Tomcats straying about. So to get him back to using his litter, while we were off to work we would lock him in the room with his food and box to get him to use it again. but recently he has been meowing more than usual, a lot more. Now he wants to come into my room and he comes up to me and he allows me to pet him and stuff. PLus my other cat tom, who is fully better now, wants to play and he smacks Sid in the head and he doesnt do anything like he used to. They would fight before but now he doesnt do anything. IS he depressed? What could be wrong with him?

Sid is the white cat and Tom is the greyish one