For the past two months I've been having a problem of having more frequent bowel movements. instead of going once a day like I used to I''m now going 3-5 times a day and sometimes I notice bright blood streaked in a glob of mucus. Also, I have the constant urge and sensation of having to go even if I went just an hour ago. This is extremely annoying. I had a flexible sigmoidoscopy test done and it found only hemeroids. What could be causing this?