Hello I find that after a night of heavy drinking I see blood in my stool the next day. It has happened four times and, when I does it usually happens once just the first poop in the morning. I went to the emergency room and he took a stool sample it didn t test positive for blood. I have stopped drinking and now i m scared it may be something more server. I m 29 years old female and i ve been drinking whiskey heavily it only happens after drinking