My cat, Butch, has not been active since I brought my dog home. My other 3 cats are fine with the dog, but Butch stays under my parents bed, or hides in a corner all day long. This is not like him. Although he is over weight, he's usually pretty active, but now he won't even eat. He's loosing a lot of weight and cries every time someone tries to carry him away from his corner. The only time he'll come out is when the dog is put away in a bedroom, but thats not fair to the dog either. We tried introducing the two slowly, but it's not working, he just cries the whole time. What do I do?