I was walking across a room and began to feel dizzy, continued until I could get to a wall to stabilize. As I approached the wall, my left foot seemed to drag a bit on the floor, and my left knee jerked a few times. I have history of Cardiac Artery Disease, no stroke or heart attacks, infrequent angina. Any ideas? I am 60, 207 lbs. 5'8, had a minor vehicle accident last week and am under chiropractic treatment.