In July, my blood tests showed that my TSH was 0.04 and T4 was 15.8. I was on 75mcg Levo at the time. My doctor went into a panic and said I was overmedicated and had to reduce to 50mcg. I did as she asked but since mid/end August and throughout September my hair has started to come out in handfuls again, I am tired all the time and my mood has been very low. I made an appointment to see the doctor but, in the meantime, I decided to raise my dose back to 75mcg (naughty I know!). I saw the doctor today and, as expected, she said I was overmedicated. Armed with information fro people on this forum, I stuck to my guns and told her that I felt better on 75mcg and that I didn't think there was a problem with my TSH being low or suppressed as long as my T3 was in range. She told me that they don't normally test T3. To be fair to her, she did say it was my body and I could do what I thought best but she said she did not recommend me increasing the dose again, adding that the endo I saw didn't even think I needed treatment at all. We left it that I would increase to 75mcg again and have a blood test, including T3, in 6 weeks. She also told me that she had done other tests in June, including B12 (452), Folate (5.9) and parathyroid (3.1). I don't have any ranges I'm afraid. I had folate tested about a year ago and it was 8.8 and B12 was 466. Any thoughts?