For most of my life I haven't been able to get to the weight requirement, but when I finally did i was really excited to donate. Everything went fine, and as a preventative measure I ate 4 cookies, a bagel, and drank 3 bottles of juice afterwards. I waited 30 minutes till I felt okay, and then my friend and I started walking home. I fainted halfway there - literally just started feeling super dizzy and nauseous and just collapsed - and then felt incredibly sick for the rest of the evening. I think I was lucky to have my friend there and be walking rather than driving. I want to donate again, but I no longer within walking distance of a donation center, and I am terrified of fainting while I'm driving. That would be really dangerous.