Hello everyone, I was recently diagnosed with Hyperthyroid, and put on methimazole. I am 53 and have not had a period in 10 years. One reason they finally checked my thyroid was because of loosing 20lbs in 3 months. I am finally starting to gain it back but have since started having some vaginal bleeding could this be caused by the, meds or weight loss. Will be calling my Gyno on Monday. A little scary because my sister passed away 10 years ago of ovarian cancer. I am checked yearly and recently had a vaginal ultrasound that showed everything was fine.