Did you read the stickies that I suggested?
If you don't have a history of using iodized salt, you are probably deficient.
My concern is always that one might have thyroid problems from an iodine deficiency then be put on Rx thyroid drugs for the rest of one's life.
TSH is too high.
T4 is way below mid-range
Please check your waking and mid-afternoon body temperatures. These can be useful as a dosing guide.
You would be better off with:
Thyroid hormone uptake (Tuptake or T3 uptake) is a measure of the unbound thyroxine binding globulins in the blood, that is, the TBG that is unsaturated with thyroid hormone. Unsaturated TBG increases with decreased levels of thyroid hormones. It is not directly related to triiodothyronine, despite the name T3 uptake.
"This test is rarely used now that reliable free thyroxine and free triiodothyronine assays are routinely available."