She is due for her annual checkup but was just in the vets for emergency care in October as she had vestibular disease and got throughly checked out then.

As far as the spot on the floor, you're question just gave me an idea. I got locked out one night and had to go through the backyard in the dark to get to the spare key. I did step in poop w/o knowing then saw "poop tracks" through the living room. I cleaned those but maybe some smell still lingers in those spots. I'll work on that part.

I'm still wondering though why she's pooping on the patio. One of my cats absolutely refuses to poop in the yard and dig a hole like most cats. I put a cat box out there but she won't use it either. Maybe Mickey is seeing that the cat is pooping there so she is too.