Hi, I have recently have blood test to check my Thyroid as I have nearly every single symptom of an underactive Thyroid however my blood test results have come back and the doctor said they are fine and no further action is needed. I am really surprised as I was sure it would confirm what I had expected. My results are: T4 level 13 pmol/L and TSH level 0.35 U/mL (showing on the print out as below range). Can anyone offer any help? I suffer with all the symptoms of underactive Thyroid as I say, I am fed up with the tiredness, feeling so cold and foggy mindedness and I really thought this was going to be the answer. Any help would be appreciated.