3 years ago I was diagnosed with Hashimoto's and it took almost 2 years to regulate my medication. About 14 months ago I was put on synthroid and all was well. I have never experienced hair loss but over the last four months my hair has become extremely dry, it feels like straw. When I get my hair wet it give off a strong chemical smell. My hairdresser has tried various products and treatments and believes that the synthroid is probably the culprit. Has anyone ever had this happen? Any ideas to fix it?