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Sylvia
TSH: <0.01
FT4: 23 (8-21)
FT3: 4.5 (3.8-6.0)
Looking at past posts, it seems your GP wants to lower your Levo from 125mcg to 100mcg.
Point out that your FT3 is in range so you are not over medicated. In support of this see
thyroiduk.org.uk/tuk/about_... > Treatment Options
According to the BMA's booklet, "Understanding Thyroid Disorders", many people do not feel well unless their levels are at the bottom of the TSH range or below and at the top of the FT4 range or a little above.
The booklet is written by Dr Anthony Toft, past president of the British Thyroid Association and leading endocrinologist. It's published by the British Medical Association for patients. Avalable on Amazon and from pharmacies for £4.95 and might be worth buying to highlight the appropriate part and show your doctor.
Also -
Dr Toft states in Pulse Magazine, "The appropriate dose of levothyroxine is that which restores euthyroidism and serum TSH to the lower part of the reference range - 0.2-0.5mU/l.
In this case, free thyroxine is likely to be in the upper part of its reference range or even slightly elevated – 18-22pmol/l. Most patients will feel well in that circumstance.
But some need a higher dose of levothyroxine to suppress serum TSH and then the serum-free T4 concentration will be elevated at around 24-28pmol/l.
This 'exogenous subclinical hyperthyroidism' is not dangerous as long as serum T3 is unequivocally normal – that is, serum total around T3 1.7nmol/l (reference range 1.0-2.2nmol/l)."
You can obtain a copy of the article by emailing louise.roberts@thyroiduk.org print it and highlight question 6 to show your doctor.
If he still says he wants to reduce your Levo, then tell him you want some T3 to raise your FT3 level because it is far too low and shows poor conversion of T4 to T3. Your FT4 is 115% of range, your FT3 is 31% through it's range. They need to be in balance, so offer to reduce to 100mcg Levo only if they add T3.
Sylvia22,
I am deleting the results image which is showing your personal details, name, Dob & med no.