ADD/ADHD

1. It can most definitely appear in adulthood. And it can present itself in different ways from childhood to adulthood.

2. The symptoms can be different for different people but the more common systems are impulse control issues, interrupting, blurting out, lack of concentration, wandering attention span, rambling conversations...that sort of thing. Not everyone has the hyperactivity side that can accompany ADD. I think I had the hyperactivity more as a child than I do now, although I still have my moments.

3. I don't think I've ever heard of lack of empathy being associated with ADD. I have heard that about people with Asperger's. Difficulty in concentrating is very much a symptom. I think of it like being in a room with 20 tvs blaring 20 different shows. You find yourself unable to focus on just one or you move from one to the next. Multi tasking isn't a problem but multi tasking well can be a problem.