I started massively shedding my hair a year ago and thought it was from a drug, but now I realize it was that I'm hypo/hashi's. I started Synthroid 10 weeks ago and now my shedding has doubled on it. Does it getter worse before better, or am I a poor responder? My endo only checked TSH :( . It was 6.4, then 5.2. (btw, I'm seeing a new one in 2 weeks). The hair loss is really upsetting. Vit D and ferritin are in normal ranges and scalp biopsy showed no genetic loss