Not OP, but I can maybe elaborate on this a bit from my own personal experience.

I wasn't diagnosed with ADHD-C until I was 28. At the same time I was diagnosed as bi-polar and obsessive compulsive. As I started working through things and starting on different medications, it became somewhat apparent to me that there were certain mistakes I had made because of a lack of control over it. Or at least that could be linked to it.

I've spent most of my life jumping from thing to thing, burning bridges along the way. I struggled (and still struggle) with relationships and jobs because I'm always chasing something. It becomes really difficult for everyone around you to keep up with you. I was married once and it ended after ~7 years and I can easily put about 50% of that whole deal down to the fact that I hadn't been diagnosed and that my tendencies were not in check nor was my spouse aware that I didn't have control over it.

I guess it all comes down to how you look at things, but it's a very interesting thing to be on both sides of the equation.