The tests; I have seen clearly hypo thyroid patients being diagnosed hyper thyroid. Not Iodine related at all. One case even the doctor laughed, said this cannot be possible. So he took another test and all came out "fine"
All I could think of was; she is HYPO thyroid for god`s sake! but I have learned when to keep my mouth shut:)
So; do you have hyper T symptoms? (rare these days, except for tests) If so, I would consider the dosage of Iodine and / or co supplements; up or down.