Light headed and dizzy, vision left. Why did it happen suddenly?
Last night at a concert I was standing there and out of nowhere began (quickly) to feel light headed/dizzy and my vision start to go .. on top of that i got very clamy and started sweating very badly in a matter of seconds .. and then i felt nauseaus. This has happened to me three times in the last 3 years, twice at a concert and once at work. Two of the times I was pregnant.