I'm so sorry to here this. I lost my inspiration for my Avatar (Boog) 2 years ago from kidney failure. He was almost 20. His brother Scooter I lost at 16. My 3rd cat Jaspurr didn't make it past 8. Each were like my children & I miss them greatly. We held onto Scooter too long after he was diagnosed & I regret making him suffer for my lack of strength doing what I know I should have. Boog, we didn't wait until he was in pain. We put him down when he lost too much weight & didn't have the strength to play any more. I didn't want to give him pills to make him hungry. After 2 years, I finally gave in & adopted 2 cats (brothers) who were rescued. I know it is very hard, but your love for your buddy will guide you. -- In God we trust; all others bring data!