I drove from the SE to the Lake District yesterday. Probably my longest drive ever, as dh generally does the long-distance driving. He usually does it in 3 legs, with one long meal-break and one quick cup-of-tea-break. I insisted on 3 long breaks, and boy did I need them. By the time we arrived I was utterly shattered, dizzy with fatigue and jittery in my body.
Why does motorway driving do this to me?