He is not hot. And I can't tell if he is drinking more than normal, since he shares a water bowl with Zoee. I do not see him at the water bowl anymore than normal. But (and I don't know if I'm being over paranoid) I feel like his urine clumps in the box are super bigger for the past couple months.
I took him to the vet back in January, but I forgot to request the doctor I prefer. I talked to the other doc about some things and got prices for getting blood work and tests ran, since he is getting a bit older. He has his regular annual check up coming up in April, I think. And I plan on getting all the tests ran - thyroid, diabetes, kidneys, liver (even though they he had all these checked about 2 years ago). I will talk to my sister and get a list of what I should get tested (she is a vet tech).

With thyroid, would he pig out and then all of the sudden NOT eat at all? Or is he just being a picky eater? I guess I'll see how he eats in the morning.

I haven't weighed him since his vet visit, because that requires my butt getting on the scale, and I'd rather not see that number right now, lol. Maybe I'll see if Bruce will do it for me.

Thank you for the response Freedom.