My 11 year old son has been out of sorts for a while now - tired, lethargic, low mood, 2 recent fainting episodes...so GP did some blood tests. When the results came back one was initially flagged as abnormal - his TSH was 4.63 (range 0.27 - 4.2) and T4 13.3 (12-22.) Finally got called back today and GP says actually they're fine, its normal for children's TSH to be out of range on occasion. Is this true? Given his out of sorts-ness I find it hard to accept all is well. Any advice wouldbe great.