Hi My teenage daughter had 'sub-clinical' hypothyroidism earlier this year but was very symptomatic- headaches, poor concentration, freezing, weight gain - high TSH (5) but normal T4. Now my teenage son is the same. Daughter had to wait to see endo so it took 6 months to get treated. GP agreed to treat son after 3 tests came back the same- high TSH, normal T4. His symptoms were foggy head and tiredness, nil else. Both are now on 25micrograms levothyroxine.
Anyway, I was wondering is there anything that would cause this for both of them so young at the same time? e.g. environmental things? Or is this just a coincidence?
Two great-grandmothers had hypothyroidism but no closer family history.