Happened to me once. I hadn't eaten anything the day before and was feeling kinda sick...woke up in the morning and felt kinda dizzy so I went into the kitchen to fix something to eat. I was standing in front of the stove and started to feel kinda dizzy again, went to go sit down and my vision got sort of sparkly...next thing I knew I woke up on the floor.
Scared the crap out of me, I am now VERY careful about how long I go without eating...
