My 11 yr old cat American shorthair poops everywhere and only sometimes in box. Ever since my soulmate died of stroke 2 yrs ago (it was his cat) and moved to.household with lots of cats this has been going on. We have several automatic cat litter boxes and others. I have one other cat who.is starting to do same. However, my.older cat (11) has had surgery and had infected eye removed and dental surgery (costly) recovered quick- think he has thyroid issues as has hearty appetite and looks thinner.