28/10/2026
Comment or DM me BLOODS and I’ll send you the full list of thyroid markers to ask for.
For anyone told their thyroid is normal with a TSH above 2.5, who still has the symptoms.
A TSH within the reference range means you don’t currently meet the threshold for treatment. It doesn’t tell you where your own level ought to be.
Large studies show the risk of later developing an under-active thyroid rises steadily across the normal range, and more sharply when thyroid antibodies are present.
A TSH of 3 isn’t a diagnosis, and the time of day alone can shift it by around a third. It does justify a fuller picture: fasted morning blood work, free T3 and T4, TPO antibodies, ferritin with CRP, and a few days of morning temperatures.
Then correct what’s missing and retest.
Send this to anyone who was told their thyroid was fine with a TSH of 3-point-something.
This post is for education only and isn’t medical advice. It doesn’t replace an assessment by your GP or a qualified clinician. Don’t start, stop or change any medication or supplement without speaking to a medical professional.