Aww Junk-what is going on? I am glad your kitty is okay. The same thing happened to me, except it was the night before I was supposed to go out of town for a friend's wedding. I am not sure I would have noticed him trying to use the litter box s frequently if I wasn't in my room packing. I also took him to the ER vet, and HOURS later at like 3 am I came home w a kitty with fluid injected in him, on pain meds and a prescription for anti-biotic. It was awful