Before you have any negative thoughts about yourself, I’m sure its hard enough to make through medical school w/o ADD. I know little to nothing about the field. You are still young enough to make changes. There is so much you can do with a medical degree. Maybe ask yourself what type of people you want to help, i.e people with mental illness. Maybe you can go into psychiatry. God knows the medical field could use some more professionals who can feel actual empathy with those they are trying to help. Don’t know if this helps. Best of luck to you in your career.