My 12 year old has POTS (dysautonomia) and MCAD. He is very gifted, and lately, when he studies for long periods of time, writes a research paper, or takes tests, he becomes sick afterwards. His lung capacity is at about 70% overall, but he can’t tolerate Xopenex or most steroids. We’re trying Intal soon. I’m wondering if he isn’t low on oxygen when using brain power, but normally he is at 97-98%. If anyone has any advice or comments, please send them my way. Alec is on H1, H2 blockers, Gastrocrom, Midodrine (vasoconstrictor for POTS). He is getting headaches and episodes a few times a week, now. Will oxygen help? Any other suggestions?