Welcome onboard, and thank you for a great testimony of taking Iodine for Hyper Thyroid!!
The quick lowering of resting pulse is a bombshell.
Also congrats for stalling the doctors for so long. I know a few that didnt withstand their dr. med; they now have a miserable life without a working thyroid.
You still have some work to do, there will be up and downs, probably;
But wow, what a start.