I have had ADD since a child. Though didn't realize it until I was 25 or so.
I think it is an unfair assessment of people to say they have or do not have it.
I also think, that having the train of thought associated with ADD/ADHD is what separates us.
The thought of an ADHD/ADD mind is what makes all of us able to come up with ideas. The downside is when working and trying to implement those ideas you wither need weed/adderal/mental training to do them.
If you can find a good balance in both you are golden...