I'm new to these message boards and to thyroid problems so any advice would be fab.
I started levothyroxine about 9 months ago due to fluctuating levels. My thyroid is routinely tested monthly due to another health issue so this was picked up quickly. I cant recall the exact figures but some months it was normal and some months it showed I was under-active (not drastically) hence started 50mcg of Levothyroxine.
I was tested for Hashimotos prior to starting treatment and the results were negative
Until October this dose kept things stable and within the number ranges but since then they have be as follows:
October TSH 0.06. Free T4 22.
November TSH 0.01. Free T4 26.
December 23rd TSH 16. Free T4 at 9.
January 9th TSH 81.8. Free T4 6.4.
So from November to now my TSH has increased from 0.01 to 81.8. My GP has rang me today and told me to up my medication from 50 to 150mcg.
Any ideas why the sudden increase? is it something I should be worried about? I don't feel unwell.