I had a molar pregnancy in June of 2008 I have been tested constantly since. My HCG went to zero and have not inclined at all at any time. My periods have always been pretty regular and with a relatively consistent flow. So in October when I hardly had a period I became concerned, but I had my levels checked and they were still at zero. I have had little or no period since October. (It is now April) I have gained about 30 lbs since my pregnancy. I have had 3 sinus infections since October, fatigue, dizziness, joint pain, neck pain, a bump on the back of my neck. I have had an MRI, and multiple tests all coming back negative. Including checking my cortisol levels due to the bump. The Dr. did say my thyroid levels were on the edge. Could this be causing my lack of menstruation and would thyroid medication help my symptoms?