question: Out of the blue when I am driving any where over bridges or if I am off the ground walking up stairs, anything having to do with being elevated or going down I get dizzy. It could happen on an open road while I am driving. This is very scary and I no I need to see a doctor. Can anyone tell me what this could be. I use to take blood pressure medicine but was taken off of it because it was not making any difference. It was not that bad.