I space out quite a lot too. And I know exactly what you mean by not feeling like a part of your body--I often feel that way too. I remember I was about 8 when I started feeling that way (that I remember) and I asked my mom if I was a real person because I did not feel real. She thought I was kidding and busted up laughing.

As far as my past, I can remember quite a bit of it--but I can't remember things like what I had for dinner the night before, what I just said, where I just put my glasses, what I came into the room for, etc. I'm really bad at remembering people's names.

I don't drive at all for the very same reason.