I am not saying you don't have a problem, because I also feel like someone who has ADHD and feel a lot like the author of the article.
But I also think that, just like the author, you can change your 'ADHD' by changing your behaviour.
Again: I dont want to put anyone down that is labelled with ADHD, but I think this culture is on it's way to create an ADHDer of everyone.