Have you discussed Subclinical Hypothyroidism with your GP. This is where the TSH is between 4 and 10 with normal FT4 and hypo symptoms. A trial of Levo can be given.
If TSH is between 4 and 10 mU/L and FT4 is within the normal range
◾In people aged less than 65 years with symptoms suggestive of hypothyroidism, consider a trial of LT4 and assess response to treatment 3–4 months after TSH stabilises within the reference range — see the section on Prescribing information for further information on initiation and titration of LT4. If there is no improvement in symptoms, stop LT4.
◾In older people (especially those aged over 80 years), follow a 'watch and wait' strategy, generally avoiding hormonal treatment. If a decision is made to treat, prescribe LT4 and recheck TSH two months after starting and adjust the dose accordingly.
◾In asymptomatic people, observe and repeat thyroid function tests (TFTs) in 6 months.
However, you did say in a previous post that you'd tried thyroid meds and gave up after 2.5 months because of muscle problems, etc.
I think it is so wrong not to prescribe levothyroxine when TSH goes above the top of the range. yours is 4.20 but your doctor is sticking to the guidelines of the NHS which is not to prescribe until TSH is 10. This is a most ridiculous statement and just shows how little they know about this disabling condition.
This is a list of clinical symptoms and you can tick off the ones you have and give him a copy. Plus one from TUK:
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