You need to get checked out. This could be atrial fibrillation (irregular heart beat).
Saw the dr and told her about the incident and it's because I am extremely anemic and dehydrated and need a blood transfusion:(. I'm holding off because I hate blood transfusions... I am hoping I can get away without having one, but iron supplements make me really sick! But will end up having a blood transfusion:(
if your blood pressure drops too low, it can restrict the amount of blood flowing to your brain and other vital organs, which can cause fainting or dizziness and lightheadedness. this is why your eyes went all black.