my 16 year old son had his thyroid t3 free tested the results were 7.41. High range to my knowledge. one month later he was retested and results were 4.69- normal range. the problem I am having is his symptoms are progressively getting worse. symptoms to include: headaches, sore neck (sometimes), severe abdominal pain, anger, grey pallor, dark circles under eyes, cannot eat without wanting to vomit, cannot focus-grades dropping rapidly and memory difficulty. should I continue to ask for more thyroid tests? Just because his T3 Free came down, can it still fluctuate or is this a coincidence that it went up out of normal range? Help. what avenue do I take next?