A few days ago my 1 1/2 year old cat had started acting weird. She is acting very lethargic and sleeping all day. She normally has tons of energy and is has a spunky attitude. Her third eye lids are showing and she can barely keep her eyes open. I looked at her eyes and there is no discharge or redness. She is not eating dry food but she is eating the wet canned food. Since she hasn't been moving much so she hasn't been going to her water bowl so I put one near her this morning and she started drinking. I haven't seen her use the litter box at all though. About two weeks ago she stopped pooping in her litter box and go on my bathmat or in the tub / shower. She will urinate in the box and then go on the mat. I though she was just being picky and didn't want to use one box for both. I don't know if that is important or involved with her illness. There is nothing physically wrong with her. She is eating and drinking, but she just isn't herself. I'm taking her to the vet when I'm off work, but I don't know what could be wrong.