I frequently will get lost driving places I've been before. I know the route but will "space out" to the point that I must drive right by my destination, or go straight where I'm supposed to take a turn, or turn onto a wrong road, or something - but I have no recollection of the time period I get lost, so I don't know. All I know is when I come to myself I am in an unfamiliar place. Its getting very convenient as I often add an hour or more to my trips, ending up an hour late and wasting a lot of gas getting lost.

Is this some kind of dissociative disorder, or what? I need to know what it is so I can do something!