I was diagnosed with Hastimoto's at 26 and was on the same level of Synthroid (.01mg) until the birth of my second child, a girl, in 2007. When I was pregnant with her my thyroid levels were all over the place and my prescription was finally leveled off at 137 mcg of Synthroid. However, recently I went for a test, and my levels were elevated and my doctor increased my presciption again to 150mcg. Now I am losing my hair, and ever since I became pregnant with my daughter I have been skinnier than I have ever been my whole life (not that I am complaining about that, but i find it strange) I don't hardly ever feel hungry and I can skip meals no problem. My concern is that my joints are sore sometimes, (could be age, could be something else?), and my hair loss is really annoying. I can pull several strands of hair out of my head every time i run my fingers through it, and I lose a lot in my brush and in the shower. I feel irritable (could be my 5yr old and 2yr old driving me crazy or maybe chemical?), and moody, so I have all the symptoms of Hypothyroidism again! Why have my levels been rising since my pregnancy and why can't my doctor get my prescription right? Does any one else have trouble controlling their levels with Synthroid or another drug for that matter? Does anyone have any suggestions on what I should be talking to my doctor about to get info on why this is happening? Could it be a symptom of another disorder (parathyroidism, cancer?) Thank you.