I was diagnosed as having an underactive thyroid in March with a TSH >100 which I am currently being treated with 150mcg levothyroxine. I got a print out of all my previous blood tests I've had done over the years and back in 2005 it shows that I was just overactive with a TSH 0.37 (0.4-5.0) has anyone else had this or knows what it means? (If anything)
Last edited by Dollybird
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