Gizzy is now 14 weeks old, his earlier behavior issues seem to have gone away as he has grown. However this week he has started pooping on the bathroom floor in front of my shower, he has a litter box in the bathroom already and one in his cage that he stays in when we aren't home. The first 2 day's he did it in the night when we was in bed so I started taking the box out of the bathroom and closing the door and putting the box infront of the door. Yesterday when I woke up he had used the box in the night and no out of the box surprises anywhere but when I got out of the shower he had pooped again on the floor. I am using a cleaner with an enzyme to eliminate the smell, a few hours later my son called me at work to let me know he did it again! Last night we steamed clean the carpet where he keeps doing it then I took an old blanket covered the whole area and put his litter box on top of it, 2 hour's later he went in scratched his box then got out scratched till the blanket was pulled back and pooped on the carpet and it was diarrhea! This morning he did it again only this time my husband saw a worm in it. I am not sure how he even got tape worm since he's never been outside since we got him I had wormed him after the first failed attempt to the vet. He doesn't have fleas and he has never even seen another cat. We immediately called the vet and my husband went and got wormer for him. So far he hasn't gone to the bathroom so I don't know if he will go in his box or not. Do you think this is the reason for his sudden change in litter box habits? I have done tons of research about cat's since Gizzy is our first cat and I went out and got a new litter box and put puppy pads in it in case his butt was sore and the reason he started using the carpet my fear is he will continue this behavior and my husband will make me get rid of him. I already feel terrible because I didn't realize he had worms or that he was sick. I haven't changed litter or his food.