I m a 53-yr old female. This evening, driving home after work...I experienced sudden dizziness. It almost felt like I lacked oxygen. But I feel like I momentarily blacked out. When I could focus again, I drove over to the shoulder and parked there for maybe 5 minutes - not entirely certain of the chain of events. I drove home without further incident. No pain or dizziness since that episode. I don t have medical insurance until next month so I did not go to the ER.