My last blood work shows my free t4 as being 0.57 and my TSH as being .58. I realize these are low normal but my doctor seems to think all is OK. I have told him about my inability to be out in the sun very much without sweating excessively and turning so red that everyone is asking if I am ok. I am also restless, can't sleep, and very tired all the time. Could there be a connection?