Ok - this would seem to me be a conflict but I am curious anyway. A friend of mine is thinking about getting his PPL but admitted to me that he suffers from altitude sickness whenever he goes above 5K MSL. He recently asked his doctor about it who Rx'd him Diamox that is supposed to prevent/speed up relief of his symptoms. To me this would seem like a medical problem for someone trying to become a pilot. Any words of advice knowledge I can pass on?