Hi, This is my first post. I have been slowly losing hair all over, a lot on my sides/temples. I thought is was my age. Just 40. A random CBC showed my TSH was 5.6. Slightly high. Went to my PCP (could only see a P.A.) and she said "You are Hypo-thyroid, take this (Generic Synthroid" you'll feel better and hair will grow back." She NEVER checked my Free T3 and Free T4, My hormone levels.... She wrote me for .088 mcg of Levothyroxine. I got a terrible Headache and racing heart, beet red face. I could deal with that. But then I started swelling up, Sinuses swelled up, wheezing. I went in the next day and she had to give me steroids to calm the allergic reaction. I get more tests done tomorrow. 5/16/09 (Free t3 and t4,FSH,re-do of the Tsh.) I am losing my hair so bad, that my vacuum cleaner got clogged! All I want is to get leveled out on the proper medication and KNOW that my hair will grow back! I think about it all the time. I'm a single Mom of 2 kids and I wonder who will date me if I lose all my hair! AND the side effects of Synthroid IS HAIR LOSS! You can't win! I'm going to ask for Armour or another combo T3/T4 med. Does anyone know if you hair grows back once you are leveled out on the correct thyroid dose and your body had "normalized"? I know there are way worse problems. I do. I AM being vain. But I am shedding EVERYWHERE! I hate to see it in the shower, in my brush. I wonder if you just ALWAYS have very very thin hair forever, no matter what you do? I will take the medicine, because low thyroid makes you tired, bleed abnormally,cranky, puffy eyes and face and tons more. Wonderful for dating, huh? Anyone know if your hair grows back when you are leveled out? I'm SO glad there is a support group though! It's a lonely thing to have!