Hello, I also suffer from Fibromyalgia, it all started when my father passed unexpectdley in 2000. it took almost 2 years to diagnose me. I had to quit work and know at 29 live on disabilty. Anyway I have read here about alot of thyroid issues. Well I also have had thyroid problems since I was 8, I was put on PTU, and I would go into remission this happend up until I was 21, then they decided to use RAI, I was miserable ever since, I went from having Graves, and Hyperthyroid, to being Hypothyroid and gaining major weight and fatigue, etc. Well just my case. Synthyroid never worked for me, my sister either, so we used Levoxyl for years. Well in 2003 I was searching on the web, and I came across a natural thyroid supplement called Armour Thyroid, I asked my doctor she switched me. I was put on 2 grains which is 120mg, (thyroid wise), I felt better, but my doctor kept wanting to switch my dose, so a few months back I found a new doctor on the Thyroid info site. He is wonderful, he listens he also can't understand why most doctors won't use it, he prescribes Armour alot, I also told him I feel better (thyroid wise) when my levels are very supressed. So right know I'm at 0.05 and your supposed to be within 0.47-5.00, well I told him this is were I feel better (only as far as thyroid goes). Well he ran the whole gammit of tests for thyroid only to find out on me, I make these anti thyroid antibodies, normal ranges are supposed to be 0-40, mine was 189, so he put me on a thyroid supplement. These antibodies destroy thyroid function, and work against you. I would have never known and who knows how long that has been going on. Well all I'm saying is that Armour works well for me, because you get t3&t4, not just t4 with others. But beware not alot of doctors like to use it and won't they say it's harder to regulate than synthroid, etc, but I think it's only because it's cheaper, and you prescribe the name brand. Sorry to be so long, I just wanted you all to know what helped me, and my sister.