One of my Cats has kind of a mucus bloody diarrhea, I was wondering could he get this from eating the kitten's food? he's been sneeking in the bedroom eating it whenever he gets a chance, and he's a piggerman also so I am not to sure how much he's been eating of it, probably off and on for a couple of weeks now, I have never seen him have it before, he's probably at least 11 or 12 years old... Thanks for any information