Wombat gave you a fabulous six-course dining experience with her posts. If I may add an after-dinner mint --
Dog Rose is in England and has a practitioner helping her. As a stopgap between just taking supplements and taking prescribed thyroid glandulars, she is doing a trial of GTA. This thread talks about it. I agree with Wombat that a qualified doctor to guide your thyroid therapy would be optimal, but until you're able/willing to do that . . . .
In case you missed this from a few weeks ago, there are several posts starting with this one.