Originally Posted by
dmills
I've also had problems with getting dizzy when standing up quickly and have passed out once. I see Sky Diver posted that it is not blood suger level related but it only seems to happen when I'm hungry so I assumed that had something to do with it.
I doubt your symptoms have anything to do with sugar. They may INDIRECTLY have something to do with oral intake, i.e. if you have not had anything to drink for awhile, you are slightly dehydrated and will have even lower blood pressure when you stand up.
But the lightheadedness you get when standing suddenly is low blood pressure. Just drink plenty of fluids and you should be ok.