I have suffered from amenorrhea for 11 years now. My cycle never restarted after giving birth to my daughter. The cause is unknown to date. I have been on metformin, clomid and even fertility shots accompanied by pills. No pregnancy, and so far nothing has stablized my cycle without a monthly induction. I have not been on any meds in 2 years, but am not spotting a brownish discharge. No medication changes, no lifestyle changes, and no sress onsets. What could be causing this?