Alcoholism is progressive and gets worse in time. Even when not drinking, it increases....this is why drinking after any period of abstinence is dangerous.
A friend who attends meetings told us his story. See, we thought he was still drinking....
As it turns out, he has 10 years of sobriety. He suffered a stroke during withdrawal and now slurs his speech, is in constant pain, and has other health problems because of that. He only drank alcohol, did no drugs.
Blood in a stool is a serious sign of something, even if it stopped after a few days.
Please seek medical help.