hi there, i know exactly how you feel. i have the same symptoms as yourself on an almost daily basis. went through the same thing with the tests a few month ago and they diagnosed me as suffering from hemiplegic migraines. im starting to get used to them now though and it helps when you actualy know whats wrong, after a while i felt like people were looking at me like some kind of hypocondriac and that IF ONE MORE PERSON TOLD ME ITs "JUST A HEADACHE" my head realy was going to explode!!