I have three cats. One is 15-16 years old and weighs a whopping 6 lbs (and this is after she's gained weight once the vet discovered she's hyperthyroid and we got that under control). Nadia has always, always been hard to keep weight on, and we work hard to make sure she gets enough calories/has some padding on her. She's tiny. Because of this and her age, I keep a close eye on her.
A couple of months ago, I noticed some dried cat diarrhea in one of the litter boxes and on the floor near it. Since this was in the litter box Nadia has decided was "hers," I made sure she drank more water (added chicken stock, she loved it) and fed her in smaller amounts throughout the day. Sure enough, it was her and it didn't clear up. Called the vet, gave her the right dosage of Pepcid AC per instructions and everything was right with the world. Or so I thought.
Little did I know that she had had diarrhea all night long. After her litter box got too disgusting, she'd moved onto the guest bathroom. When that got too bad, she'd then moved onto the downstairs guest bathroom. Mid-afternoon, after the problem had long been treated, I went to use the downstairs bathroom.
Oh. My. God.
It looked like a poop bomb had exploded. There was poop everywhere. Floor. Bathtub. Bathmat (it got thrown out). A towel left on the floor (which was white and was promptly bleached). After scrubbing with cleaning solution, wiping everything down, and then wiping again with a bleach, I figured I was done. Then I hear my partner from upstairs.
"The bathroom up here is covered in cat poop*" * not actual word used.
I seriously don't know how one 6lb cat could produce that much poop. Bless her heart, she tried to keep in contained, but good lord. My partner and I scrubbed poop for hours.