This is strictly for educational purposes this dog is already deceased their general diagnosis was old age. Is it still medical advice if the dog has already passed? We have a regular client that boards their two dogs one of them was a 13 year old GSD. He started vomiting thick yellow mucus in the AM (3x) and by noon he was vomiting a pink liquid (2x) and by the PM blood (1x). He was picked up after that and passed away at home within the hour but I want to know what caused him to go so quickly? Ive never seen vomit like that ever in my life. I'm thinking cancer but I'm curious as to what some of you think. In past experiences vomiting has lead to death so now I get paranoid when we have dogs throwing up.