Hi we have a 12 year old female cat who yesterday peed on our bed and two times today.......she is still using the little box as well. The litter box is cleaned everyday. We have other cats but she stays in our bedroom by herself, that started about 3 yrs ago. She is very skiddish and the other cats would chase her and she would go to the bathroom where she was so we brought her in our room. She was happy and content and then yesterday started peeing on our bed. Litter is the same, food is the same, little is scooped everyday. Wondering why???