My 15 year old Tuxedo kitty has diabetes. He weighed 17 1/2 pounds at one time. He's been on insulin injections twice a day for six months. He has peeing mishaps. I bathed him today and noticed he has big ulcers on the back of each of his legs, he cries constantly for food. He is a lot of work to care for and I don't know how to deal with big open sores and cat littler. I think he's reached his age limit. It's just going to get worse. What do you think? Poor old Bandit.