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    Hello – Having below normal TSH but normal T3/T4 is referred to as “subclinical hyperthyroidism”.

    The preference is to get TSH back in the normal range (as well as keep T3/T4 in the normal range), as there are concerns that remaining in a subclinical hyperthyroid state over the long term can increase the risk of bone fractures and atrial fibrillation.

    Hopefully, you will get good news with this latest dosage change. If not, I don’t know if you and your doc have tried alternating doses every other day, but some patients find that their “sweet spot” of medication is somewhere in between the commercially available doses.

    Take care!