ever since i was a little girl a few times a month i get dizzy spells in my sleep. i'll wake with horrible pains in my head and after a minute the spell ends.. if it happens once in the night it'll happen at least five times more. then it'll be weeks til it happens again. when i wake in the morning i am nauseaus. the first time this ever happened to me was the night just after returning home from an amusement part in which i rode a ride that gave me the same dizzy feeling. also when my head is tilted back to far i get dizzy. could the dizzy spells be from the ride, and is there a way to fix my sleep problem to prevent any further dizzy nights.