Hi doctors. how do i know if i and/or my brother have asperger's syndrome?

Why do you ask?: Asperger's / high functioning autism is a continuum and since there's no magic pill to make it go away, there's not much point in acquiring a label as an adult. Why not ask instead, "How can my brother and I make the best use of our intellectual gifts, our ability to focus, improve our social skills, learn to read people and talk to them better, choose activities we're good at, & be happy?"