Is that range right? Seems rather narrow. "target'' range is top third, or whatever level you feel best on so if that range is correct you are just scraping top third on 3.5.
Unfortunately not am option. I am one of those lucky ones who is dangerously intolerant of thyroxine in any form (reason unknown). My ft4 is around 0.1 (0.89-1.76).
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