I would like to ask a question, our 13 year old cat, has steratd using the bathroom outside the litter box this has steratd within the last two months, we need help!! we can\\\'t have our house ruined and we don\\\'t think it is fair to confine him to a small room. He is blind but has never ever had issue before. He did have an absessed tooth and was put on antibiotics. he has still continued to go outside of the litter box . sometimes using it. He is moving slower as well over the last month maybe arthritis?? I am wondering if he has dementia or alzheimers and forgets where the box is.