Hey guys I am new to this forum. My cat who was year in a half old just passed away 2 days ago. It was a sudden death with no symptoms at all, he was fine one minute and then the next minute he was just gone. I googled sudden deaths in cats and I found out about HCM. I wish i would have known such a disease exit maybe I could of saved my beloved cats life. He was a sweet lovely boy who always love to adventure indoors, he would always love to cuddle up with me and nights and meet me at the door when I came home from work. He was very active and showed no signs of any sickness what so ever. I really wish I would of know this disease exit I could of taken him to a checkup just to be on the save side, but no hes gone I really hope he forgives me for not realized he had this disease. I hope he REST IN PEACE and I hope he knows that I would always love him and never forget out him.