Back in the beginning of July, i was rear-ended at a stoplight and was hit very hard, I'm still going through treatments for the back pain, but ever since the accident, almost every time i stand up I have to immediately sit back down because I'm dizzy, light headed, short of breath, and my vision goes completely white. Two nights ago I actually fell and hit my head pretty hard. I just want to know what could possibly be wrong with me?View Thread