A few months ago my 7 year old male cat started pooping on our couch out of the blue. It was in frequent at first, but in the last week has become almost daily. There seems to be no reason for this. Also, his poops are loose and not little logs anymore. I have tried a lot of easy things like thoroughly cleaning it and spraying with odor repellent. But he just keeps going back to the same spots on the couch. I would love to know if this has happened to anyone else??