I spent 20 years driving in the suburbs of a large city in a flat patr of the country. Now I live in a rural area in the mountains. This afternoon I was on a road I don't care for anyway, and for some reason there was no other traffic. I was stressed to begin with, and at one point every thing seemed to be unconnected and I had to stop in the middle of a 55 mph zone! My passenger is partially blind and couldn't take over, he made me get to the end of that stretch to a place where I could pull off, My ears were ringing, my heart pounding and I was dizzy. I've driven that road 100's of times, although not recently, what happened? <font color="blue"> </font>