"T3 helped your pain! That's very interesting, since I've never heard of this hormone having this sort of effect before. I wonder if anyone else here has been helped by T3 in this way. I don't think it's very well known, if so. This might be an interesting thing to post on the board in a separate thread. Perhaps it would help others here. Best, Lisa" I am VERY interested in trying this so I thought I'd start a new post as Lisa suggested. I went thru all my labs and couldn't see where my T3 levels were ever checked. T4, cortisol, etc. all within normal range. I plan on going to the endocrinologist and seeing whether she'd be willing start me on T3, regardless of lab work. I really suspect I could be T3 resistant. In fact, I hope so...at least then I may find relief from pain with the T3. It may be a long shot but I don't see any harm in a short-term challenge test. I have noticed that the FFC's use this treatment alot, so maybe we'll get some feedback from their patients. Any and all info greatly appreciated!