For the past 11 months I have an increased intolerance of the cold in particular my hands and feet hurt they are that cold. Whilst I have recently lost weight following a diet plan, the last couple of months I have been unable to lose weight and even gained despite sticking to the plan. I am suffering with constipation and my mood is low. I also have a constant soreness of my throat. My GP said all symptoms pointed to hypothyroidism however blood tests are normal. TSH 0.6 and free T4 13.5. Lab did not do antibody test as others are in normal range? Any ideas?