My sister's 1.5 year old cat, Smokey, died unexpectedly this morning. Late last night she was looking for him and found him in the basement. He was barely able to walk and bloated badly. He died shortly after. Whatever it was came on quickly because he had been fine that morning. My mom doesn't have the money to spend on an autopsy that won't get the cat back, so I guess we'll never know. We don't have poisons in the house so we think he either ate something that got blocked (but death within a day?) or he was playing and hurt his lower back somehow (he didn't meow in pain when we felt over him). Smokey is now buried in the backyard. My sister's really depressed. He was a good cat. Sleep well Smokey.