Thanks for all the answers I got. I will check him out.
I agree w/ Jade and Linda about this possibly being hyperthyroidism. But, it's possible that it could be the start of kidney disease, too.
Definitely get some blood work done! BOTH of these conditions are very manageable, and can give you some more fun, quality years w/ your baby!
Check also for worms. Have the vet check a stool sample.
Hi Penny and welcome to the cat forum :) Sorry to hear your kitty isn't doing well. The first thing that comes to mind with the symptoms you describe is hyperthyroidism which is the most common endocrine (hormonal) disorder that affects cats. Of course, this is only a guess. I would suggest getting kitty to the vet for a complete blood work up.