My family adopted a five year old siamese cat from a friend of a friend. He has been at our house now for five days and while he is a very friendly cat (he does sit with us in the evenings while we watch tv), he likes to hide in the basement on my daughters quilt and he doesn't seem to be eating. I asked the person I got him from what brand of food she was feeding him and changed to that food yesterday but he still won't eat. He also seems to cry alot. Is he just home sick or should I have this checked out?