Vague.

Quite often I will be heading off somewhere and suddenly come to a standstill, not having the slightest idea what it was I set off to do. You're thinking, 'Oh, it's just age, it comes to us all'. Well, you'd be wrong. I've been this vague for my entire life. S thinks it must be really nice continually getting little surprises all the time when I get reminded about what's happening next.....

....I can't remember what else I was going to say.