This is a first for me. I was shopping and all the sudden my vision got blurry and I felt really dizzy then everything started to turn black. I was really hoping not to fall over at that point being alone with my 3 yr old. I kept taking deep breaths and it passed. Scared the heck out of me!! The dr said it could be blood pressure or blood sugar spike but they didn't seem to concerned about it at all they told me to drink more water and eat more snacks. Anyone else have something like this happen??