He was in a Cattery last week as we were away. Cattery owner rang to say he had been bleeding out of his bottom and off his food/miserable etc. Took him to vets as soon as we were home in Friday - vet was puzzled but couldn't really find a definite cause. He is still ill. Barely eating or drinking and still pooing blood. He is also clearly feeling v sorry for himself. Back to vets in the morning of course.
I'm not usually a fusser but I am worried about the poor chap.