Hi Dr. Samuel, i have thyroid from 3 years, 2 weeks back I got T3,T4 and TSH done, which showed that TSH is more than the required levels. I was taking Thyronorm 50mcg, after the test my doctor increased it to 100mcg. My periods are delayed by 7 days, and still now no sign of periods. Can you please tell me if I need to change the medicine?