Had cats and dogs my whole life. Never heard of this. Last thurs/friday our 6yr old tabby "butter ball" got lethargic. Saturday/Sunday he quit eating/drinking, and stayed under our dresser. So took'm in monday. Turns out he had a colon blockage and high fever. Vet gave him a shot of antibiotic and a relaxer. Couple hours later, had to knock him out and remove 3 poop "rocks" the size of a silver dollar. Not completely round, but hard as a rock. No hair(they get hair ball lax bi-weekly). Vet says we feed him 1 of the 2 best cat foods produced(Natural Choice), and had only seen 1 other case like Butters. Abnormal colon enlargement. Not sure what causes it. So...$147 later, we get to give him 2 meds twice a day.
