I want to share my experience in the hope that it helps you. You may have more that needs looking at than your thyroid. In short, I have hashimotos and under active thyroid and since seeing a private GP I have learnt I have quite severe problems with my adrenal function. I have spent the last 8 months really unwell with what feels like muscle/nerve pain head to toe, brain fog, inability to talk properly, nausea and daily episodes of total body shut down where I have to sleep. Sound familiar?! Pretty hard with a job and two kids under 4! Anyway, my NHS GP continually fobbed me off with increase/decrease in thyroxine. Since seeing my specialist I am back on the pill and continuing to take thyroxine. I now also take.....wait for it vit d, iron, T convert, seratone and 2 diff drugs as well as herbal remedy for my adrenals. Basically, specialist says that he is now trying to fix the adrenal problems (which can be 100% fixed, hopefully within months) which will, along with all the other drugs (!) hopefully make the thyroid manageable long term. So, if you are being told you just have a thyroid problem, please, please get your vit d, iron, urine and cortisol levels (adrenal function) tested as well! I really hope this helps. Happy to answer any questions.