Is ADHD different in women?

I was diagnosed about 5 years ago, and could see the ADHD all down the road behind me. As a female, the ADHD tends to manifest in a quieter way, withdrawing socially, daydreaming, etc, which has caused some people to believe it was a "little boy" disorder....a large percentage of females do not show hyperactive symptoms, but that could just be conditioning more than anything....Driven to Distraction is a good book on ADHD, with some parts referring to the different symptoms between genders.

I grew up as a girl with A.D.D. and was very hyperactive - more so than any boys in my class. As I grew older (high school) it became more related to chronic daydreaming, extreme "spaciness", detachment from surroundings.