Hi. I wondered if anyone can help me interpret my results?
I have had an underactive thryoid for a number of years and had been taking 125mcg thryoxine regularly. At a test in September my levels changed quite suddenly as follows:
TSH 45 (ref range 0.35 - 4.94)
T4 11 (ref range 0 - 19)
My GP told me my thryoid was now very underactive and to increase my medication from 125mcg to 150mcg. I did this and went for a re-test 6 weeks later. Results as follows:
The GP said my thyroid was now going slightly the other way - slightly overactive and so told me to go back to my original dose of 125mcg. I did this and went for a re-test 6 weeks later. Results as follows:
I have just spoken to my GP and she suggested that I drop the dose to 100mcg as it is still only slightly overactive. However, when I look at the figures it looks like it's slightly underactive to me. (as 0.05 is lower than the reference range of 0.35-4.94). Is she right to decrease my medication? Does this result suggest an underactive or overactive thyroid?