hello!! i m a female, 23 years old, i was diagnosed with hyperthyroidism in july of 2008, i had an ultrasound of the thyroid and they found a nodule, after that i had a biopsy in sep. 2008, and the found some abnormal cells, so surgery was recommended. I had surgery sep. 30 2008, and i became hypothyroid......... i went to I-131 therapy .... now months later i m taking synthoird and i m losing alot of hair? is this a symptom of hypothyroidism or side effect of synthroid