PJ is 21, deaf, gets around well, and is accommodated for everything, We feed on demand and open about 8 cans of Fancy Feast a day. He has cat boxes in every room and we vet him at the slightest sign of anything. He's a mess, he won't groom and won't let us do much. He's down to 5 pounds (from about 9 at his peak). Vet says nothing is wrong (thyroid, diabetes, etc.) How can we get his weight up? Vet says his organs will fail from losing weight eventually. He pees an enormous amount but vet says kidneys are not bad. We love him so much.