it could be cyctitis... i've seen many male cats peeing blood. but if blood is present in his diahorrea, it can be quite seriouse, it could be an infection or bowel diesese, or.. a bad case of cyctitis, in a male cat it is expecially sore for them. .. if he has eatten something out of the garbage, it could be food poisening.. the vet should do blood tests to find out
you said he vomited.. Offer him planty of water, and something bland to eat (bolied chicken is the best thing) and get him to see your vet asap..

good luck hun

Steph
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