i have been having bowel problems and my doctor says it may be stress or nerves....I then got a I.U.D. put in a little over a year ago and didn t have a period all year then was bleeding for almost a month...now my bowel movements are troubling me again but I have seen blood and it s not from my rectum. and I am not straining due to it s lose stools. what could it be ( the bleeding)