I am 22 yrs old. I have been told I have hypo and hyper thyroid levels. Recently I was put on Levothyroxin. For the first time in years ( I think I was 16 when my menstrual cycle stopped) ive finally started my menstrual cycle. But it seems like its lasted 11 days or so. I desperately want to have a child, and I am hoping to get back in to the doctor soon so they can retest my thyroid levels to tell me where I am at. Has any one had the same issues? Or something similar??