Rectal Pain More Condition_symptoms I Am Having Intense Rectal Pain During Menses. Please Help Me Telling The Causes?

I am having intense rectal pain during menses. please help me telling the causes? - rectal pain more condition_symptoms

I have very, very bad pain in the rectal area to the anus during menstruation. He has it for 8 years. I do not know what to do with it, because 5 years ago, I fainted because the pain. It goes on and on. Sometimes 5-8 times per day, more during the 1 and 3 days was the 4th Day of menstruation. I fear that, if associated with a disease of the colon or rectum?