Hello,
My case is probably unique. I had my menstruation at the age of 10. And it was normal until I reached 12. I can go on for years without menstruation. i didnt worry about it until my friends would tell me its dangerous/not good. So I went to the doctor and gave me premarin (not sure exactly but i was taking medication. Then I stopped taking. When I reached 16, I saw a gynecologist and gone through hysteroscopy, there was no problem. I was referred to a endocrinologist. All test was performed including xray of my head, there was nothing abnormal. I am still having no menstruction as of this moment for. I am now 39. What shall I do?