And my adult cat wont use the litter box at all. He haven't even peed on the floor. It's like the bladder need suddenly vanished. And now when I'm reading this thread, I think think I've seen him sleep for a while either :o
Edit: He actually does sleep. So I only have the bladder problem. I will check other households if their cats have the same problem.
Edit 2: As soon as I went into another household the cat of the household ran to the toilet and did her business for quite a while. I then went back to my other family and after a while the cat finally went on the toilet, first time in sim weeks.