I live in my mind

One thing about me that I wonder is a symptom is the fact that my mind is so busy that I don't notice things around me that I should. For example a couple of days ago a guy showed up at the drop-in center wearing a jacket in the middle of summer. It seemed that other people noticed this and commented on it, but I didn't. Instead, my mind was preoccupied with it's own thoughts. Another example, I once walked under a new swingset, then when I got to the other side was asked about the swingset and I said "what swingset?" This more than anything makes me feels stupid because I don't see what others see.