I am 27 and was diagnosed with an under active thyroid approx 6 months ago. When I first had my bloods tested I was told I had a score of 22 and after a month after I started my medication (50mg levothyroxine) my bloods then came back as 3. I was told this was a healthy range and that I should continue with this medication and have my bloods taken annually. I have much more energy and my skin isn't as dry but my hair is so thin and keeps falling out lots especially in the shower. Other than this I am in good health and am a healthy weight at 5ft5 9st7. Can anyone give an help or advice?