@TiredBill, have you ever tried Armour or one of the other natural brands? I do well with Nature-Throid. I had been on Armour for years, but it disagreed with me when they changed something about the formula.
Synthroid didn't work out for me at all, and neither did Cytomel. I go to an integrative medical clinic now, and that's where I was given the opportunity to try Armour, and now, Nature-Throid. I don't know if regular doctors are willing to prescribe them.
It's been so long ago that it's hard for me to remember, but I think when I started at the integrative clinic, my P.A. got me to address adrenal problems, too. It all took some trial and error, but I ended up feeling a lot better than when I was on synthetic thyroid supplements.
I haven't read this entire thread, but I think someone provided a link to Stop the Thyroid Madness. This site helped me a long time ago:
https://stopthethyroidmadness.com/