I had EVERY symptom of hypothryoidism and went to an endocrinologist who said I didn't have a problem. I went to a neurologist who said I had mild a hypothyroid problem. He put me on a T3/T4 combination and all these symptoms went away. The most disturbing of all was that my hair was falling out. My husband has Hashi's and he takes Synthroid. I have lurked at websites and very generally (can't stress that enough) I have noticed that it seems that women prefer (get better results) from the T3/T4 combination medications. The thyroid section at www.about.com is very good. Personally, I think it is supicious that sooooo many doctors only use Synthroid and it is especially troublesome when many women aren't getting good results with this medication and their doctors STILL are not willing to try something else. If that is the case, I think it is time to get a second opinion.