Hello - my son has been ill for years but has never had a formal diagnosis.
Over a period of time, his neck thickened & enlarged on one side, but was painless. It went down but, when it looked normal again, he often had trembling hands, massive anxiety, sweating, worsening hair loss, difficulty sleeping and weakness.
His FT4 was slightly up at 22.9, but his FT3 & TSH were normal. His FT4 had always been about 17 up to this point.
Is it possible that whatever is wrong with him has impacted the thyroid, without the thyroid being the actual problem? Are there other illnesses that can cause an enlarged thyroid or raised T4?
Thanks very much.