What was your source of iodine before? None?
Your response to IR really indicates a thyroid issue from low iodine. You MUST have selenium in diet/supplements, all the more important during IR!
Please see these stickies linked here: About the T Replacement Category - #2 by KSman
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TT is inflated when SHBG as T+SHBG increases, which is non-bioavailable.
Repeat liver profile after very light training and with no muscle soreness.
E2 - estradiol is quite low, nothing to be gained by lowering that artificially.
I can not advise cycle specifics to lower SHBG, but strongly agree with your thought process. There is a risk that HPTA might not recover after PCT. Note that most PCT advice is horribly wrong.