well my dog is about 15 years old just found out he has diabeties and he is going blind then I just found out he has a very agressive cancer that started from his bottom so I need to make a hard choice on going on with treatment or putting him to rest we are still trying to get his diabeties controlled still and I just don't like seeing him this way he sleeps all day he has lost weight but he still eats I just don't know if he will stand the surgery and all the other stff you have to do to get rid of cancer and he has has this bump on his bottom for about 6 months I just thought it was a sore then it started to get bigger so I'm lost need advice Thanks