First off, I'm a 19 year old, female, college student in my first semester of college, and I'm already finished with my mid-terms so I don't think that should have an effect. For the past week I've randomly been getting dizzy. I will feel the light headedness first, then the dizzyness and then a headache in the front of my head. I have no idea what is causing this and it's even happening at school, and it makes me scared to sleep as it happens right when I start to doze off causing me to nearly vomit. It hasn't yet, but I'm afraid that's coming. If anyone could tell me what's going on, that would be INCREDIBLY helpful.