Medichecks Thyroid plus ultra vitamin or Blue Horizon Thyroid plus eleven are the most popular choice. DIY finger prick test or option to pay extra for private blood draw. Both companies often have money off offers.
TSH is very mildly below range but FT4 and FT3 are unequivocally euthyroid (normal) so there is absolutely nothing to be worried about. GP just wants to check whether TSH drops further in case you are becoming hyperthyroid. Nothing in your current results suggests that is a likelihood.
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