Sounds like you are living the dream. I have multiple family members with ADHD, and my observation is that everyone's ADHD has different results. Some of my people get nothing done, despite starting a lot of projects. Some get a lot done, but only under certain circumstances. Some get a reasonable amount done, but only if they have a plethora of choices to choose from - they cannot focus their focus, so to speak.
So if you are getting incredible amounts of work done -- why fix something that isn't broken?
At the same time, if you think it might help your life, you can talk to a doc about your thoughts, maybe try it for a bit to see what it changes, and then make an informed decision whether or not to keep doing it.