i have a temperature of 34.9, but dont feel poorly, other than tiredness, backaches and a constant groggy type headache and feeling the cold in my hands and feet, where i usually am very hot. i have had a thyroid test, and it is low, but only just so i am not on any treatment for it, (i have started taking sea kelp after reading it can help stabalise the thyroid) should i be worried that my temp is so low, with no fever?