I recently had my T4 and TSH checked. My T4 was 2.03 and my TSH was 0.084. I have had the radioactive iodide in 2007 and haven't been able to get my levels normal since. My Dr. Just reduced my Synthroid from 127MCG/day to 100MCG/day. However, I'm noticing quite a lot of hair loss, loss of appetite, insomnia yet still feeling fatigued, loss of breath and weakness. My questions are, should I wait the 6 weeks as my Dr. Instructed to have me levels retested? And at what levels do I need to worry about a thyroid stom or needing to go to the hospital?