Migrains and physical activity

Posted By Jason Goodbody on December 07, 1998 at 16:03:12:







On numerous occasions within the last 4 years I have had episodes of heat exhaustion typically characterized by nausea, light-headedness, disorientaion, tingling in the fingers, spotty & tunnel vision, and subsequent severe migrain headaches lasting for 3-5 hrs.  This condition is brought on by moderate to heavy exercise, typically compounded by, but not limited to, hot and humid conditions.  This occurs despite absurdly high levels of water intake. This is only brought on by heavy physical activity.  I do have a history of dehydration and heat related problems despite water intake.
My military career, as well as my interest in exercise and sports, is in jeopardy and would like to get a grasp on what is going on. Thanks for your time.