Let me start by saying that I had a colonoscopy last March that came out normal when I was experiencing rectal bleeding back then. This week, it started up again, only the blood isn't bright red like it was before. It looks more like menstrual blood (I'm not on my period right now)-a little darker red. It has me worried, b/c I thought hemorrhoid blood was always bright red. I am experiencing a lot of anxiety this week, and I've read that anxiety can cause hemorrhoids to act up. Can someone please settle me down before I call my gastroenterologist for more tests?