I am a 34 y/o male and have experienced rectal pain on and off for over 3 years. symptoms last up to 2-3 months then i'm fine for another couple months. Had a colonoscopy that saw moderate internal hemmorhoids and redness of the lower colon. had a inter rectal ultrasound that showed nothing but a slightly enlarged prostate. saw 3 different doctors to check for hemmorhoids, no sign. have had blood in my stool recently, no constipation, mostly rectal pain with some abdominal discomfort/bloating. I can't get a diagnosis, pain continues.