I have similar types of thinking? As in, doubting my intelligence. Then, my new therapist said "You're not present". How very, very simple. I used to wonder why my brain could not act like other people. I knew I'd come across ditzy and forgetful. Dumb. But, I wasn't, I knew I had a good head on my shoulders.. My thought process was/is just so completely erratic that I don't pay attention to what is in front of me. If you sit still, does your mind race and think about other things constantly? I probably have ADD. But I'm not diagnosed as such and don't particularly want it added. I can't do math either, I've said before that I'm numerically dyslexic ;-) I just wanted to throw that out there. That busy minds can seem like simple minds because it's hard to retain information when we're constantly flooded with other thoughts. It really helped my self esteem to have her say that! I tend to miss the obvious.