After a second visit to my Gi doctor, he told me my discharge is actually coming from a tiny hole near my anus. I did a colonoscopy but he didn't find anything inside my colon. I have no pain. He refer me to a colorectal surgeon but the appointment is in February. The discharge is not smelling so far. I drive for leaving,  so i don't if that play in me having this issue since i  seat a lot of hours. Just want to have an idea about this.