In full agreement with tanepiper. Also, you don't say what happened nor what it is you are currently identifying as ADD. that makes it hard to give you any feedback other than, you don't have it because if you did you would be born with it.

Also, as someone who has ADHD, and was diagnosed as a child, took medication from childhood to adulthood, I learned to live with it. In my masters program I felt like taking Adderall made everything so easy and that I needed to learn to exist as I am. Of course that had some difficulties but I stopped taking it ten years ago and I think I'm all the better for it. I never need to forget taking medication, I've learned how to actively engage myself when my attention flies all over the place, I've learned how to handle the emotional disregulation. I'm not suggesting to others to do the same, but I find a nice balance in my life.

I find that many things, such as getting distracted frequently wasn't actually an ADHD related issue. I wasn't constantly getting distracted by slack and emails, it's that I was surrendering my time to others in the fear that if I didn't it would harm me in some way. When I realized this through therapy and started to protect my time and engage my interests, suddenly these "distractions" went away.