Our kitten (Felix - yes, i know, but she really is a girl) hasn't been using her box for part of the time lately, so I took her into the vet yesterday to get them to run tests and things. They gave her all of her shots and I brought her back home, and then woke up this morning to find she was favoring her back leg and that she'd peed in the bed last night (oh yes, right between the two of us. So fun). I freaked out a bit because last summer she'd had those problems with her back legs after we'd given her some medicine, so we popped back to the vet's with her (and it was so awful - she actually backed away from me when I put the carrier down and went to pick her up this morning! Poor baby!), and even though they have absolutely no clue what it is, they ruled out the shots being the cause. On the bad side she's also running a fever from the shots (kinda like when you get a flu shot and get a little fever), and so ... we have no real clue what's going on. They called us a couple of minutes ago with the results of the blood and urine tests they ran yesterday and it looks like, even though they ruled out lukemia, she's definitely got some trouble with her kidneys -- AND they spotted something on the x-rays we brought them (from the visit to the emergency hospital last June) - they're weird deposits near the back of her body that aren't consistent with surgery or anything else ...
The upshot is I get to take her back in for more x-rays tomorrow so they can see if the weird deposits have grown or not since last June, and they're going to get more blood and things to retest. If they cant' figure out what it is after that we'll be doing an ultra sound on her to see if they can find something in her bladder, etc.
Oh, and she's also got the beginnings of cataracts.
Our poor baby. She's curled up on the couch right now, sleeping the sleep of the tired and stressed out and probably achey. We'll see what comes of the tests tomorrow ... at least I'm on spring break and have the time to run her into the hospital every day.