I'm just going to state my opinion, and not bother reading through the other posts, like most other people do, you know, to see what it's like.
I think ADD is real, and ADHD as well, to a much lesser extent. Although from my experience, most people who think they have it, really don't. Why do we have to live in a society today where everything has to be labeled as some sort of disorder or disease or illness?
For example:
Obesity - not a disease.
Oh, no! You're child is really hyper, they must have ADHD! Or maybe more likely they're just being a normal kid, or probably even more likely, you let them drink to much sodas. =\