Hi, I found my cat dead when coming from work today. I am wondering what happened to him. I found him outside at the bottom of my stairs. He was in a sleeping postion as if he died in his sleep peacefully. But the thing that bugs me is that there is no way he would sleep there on the concrete. When I picked him up, a good amount of reddish/pink liquid was coming from his mouth. There was also no sign of trauma. Cardiac arrest ? Internal damage from a car hit? Family member told me he seems really affectionate this afternoon. Thanks