My 13 year old dsh, Fred has begun to get a little senile. He also suffered a head injury several years ago. His vet says he is healthy for a cat his age, just a little senile. He is the sweetest kitty ever and I want to be able to care for him properly. Does anyone have any experience with elderly cats? He was a yellow tabby when he was young, but now he is almost white. Sometimes he will sit for long periods and just grin. It is so cute. :confused3