Well, I was hoping for an OTJ kitty, but I had to give her insulin last night. *sigh* Still, she went four days without any insulin, so I consider that an accomplishment.
Anyway, I've been watching her, and she doesn't frequent the litter box. Also, she's not straining in the slightest. I don't see any symptoms of pain; she's playing, walking, and acting just like normal. And she does defecate in the litter box when she's upstairs. It just seems like she's too lazy to climb the stairs to get to the litter box when she's downstairs and has to go. Since the first two times were accidents, could she have decided it's more convenient to go there? It's always in relatively the same spot. But no one has played the organ for a long time. When I used to play the piano, if I got in the lower range of sound, she would come up and bite my ankle, but I haven't played for a few years now.
Other than the pooping, I haven't had any problems with her. We have been packing boxes as of late, getting ready for another move, so I suppose Katie could be doing it in protest of the packing.