Hi. I am new to this site! I am a 45yr old female and was diagnosed originally with an over active thyroid gland in my early twenties. Aged about 30, the GP decided to send me to a specialist who said I could no longer carry on taking carbimazole. I decided on the radio iodine option and promptly became diagnosed with an under active thyroid gland. Over the years my levothyroxine dose has varied from 200mg to 100mg, however, for the last couple of years it has been 125mg. I don't feel too bad - my only real symptom is I get tired very quickly if I don't my 9hrs a night - who doesn't?!?! However, my GP has decided I need a 'thyroid medication review' and is sending me for a blood test. Now that I have found this website, I'd love to know exactly what tests to ask for so that I can then post the results on here to gain a better understanding. Previously, when I have queried my results I must confess I don't fully understand what they are saying! Thanks for any help.