Judt happened so suddenly. No behavioural changes from the norm. He did have a bit of diarrhea for a week or two as he does have a sensitive stomach and we were transitioning foods. Last day he was cleaned up after a bad poop. He passed away on top of his cat tree in what seemed to be a relaxed resting/lazy position. Although not the desired stool, he was regular; same with urination. Appetite and water intake was always great and he had a good bute to eat. Googling doesnt always give you the right answers, and with him already gone doing an autopsy didnt make much sense as it dorsnt being him back. We are of course devastated but my hopes is the fact that he wasnt hiding and in a high comfortable spot/position he didnt feel any pain. We are considering adopting another of the same breed and wondering if anyone on here has any experience on what to look out for. The only thing that makes sense is a possible heart condition but who really knows.