I'm having a rough time in this department myself. My poor baby Sophie is not getting any better and it is STILL a fight to convince my vets that something is wrong with her kidneys. And to top it all off, now Mojo Kitty has gotten himself a urinary tract infection.
At least my kitty (at age 10) is healthy and strong as a horse. That's one, anyway.
Side note: get Chevy some Glucosamine with Chondroitin. It's available in most health food stores and you should be able to mash it up and put it in her (wet) food. Does wonders for joints, I've started Sophie on it pre-emptively.