I am only 34 I have three young children, put my symptoms down to being a new mum breast feeding etc. My youngest in now 2 and a half I am no longer breast feeding and still so tired, my weight has started to creep up. I have been tested recently and my TSH is 2.45 (0.3-6) and free T4 13.6 (9-24). I have never had any free T3 test carried out. Can I go to my gp?