Ugh, I had and have a lot of this. Now bear in mind, I'm not a doctor. I do however have Hashimoto's thyroiditis, bipolar disorder (NOS), depression, anxiety, and GERD. I recently figured out I have Fibromyalgia too, since my mood is finally "normal" with being on Lamictal, but all the pain is still there. I'm betting your kid doesn't just have one thing, but a few different things occurring together (co morbid).