My child, 12, shows signs of being hypothyroid. Constant headaches, not growing, very painful feet, low mood, joint pain, dairy intolerant, weight gain, waking temperature for 8 weeks of less than 36 degrees every morning, and as low as 34.2. Bloods all within TSH range, T3 ok, T4 ok. But... huge extended family history of autoimmune, Hashimotos and siblings on thyroxine /+T3. NHS consultants not willing to discuss because of normal bloods. Private consultants won't see under 16 years. Any suggestions?