Thank you all for the words of moral support here. I'm just really worried about him and wondering if there was something I should have/could have done that we would have known this earlier. Like, was it a UTI? Should he have gone back in for a urinalysis? Or, maybe he had started this when he was at the shelter before we even picked him up and no one ever knew.

The funny thing is, I always thought he looked like an older cat. He reminded me of the diabetic kitty we had at the shelter who had passed away. Not THAT bad, but he just looked boney when I got him and his fur was bad, ya know?? I was shocked when the vet said he was only 5 years old. My youngest is 4 1/2 years and she looks 1/3 of his age.

I'm hoping to keep in close contact with his adopters, and hear how things are going. Hopefully he'll be a good boy and eat what he needs to! He has a good appetite and loves wet food, so that's a plus for him (unless the renal food is really yucky!).