My son has been on Adderall for about 8 years, and he sometimes doesn't take his medication on the weekends if he doesn't feel like it (it suppresses his appetite and he's a growing kid), so I don't feel as if he's addicted. At least not at this point after 8 years. When I've asked him about how he feels on and off the meds, he says that he doesn't feel doped up or high on the meds either. In fact, he says he feels calmer and more able to focus than when not on the Adderall. It sounds like it is functioning similarly for you.
From what his doctors have told me, the Adderall stimulates the prefrontal cortex that those with ADHD have a slower chemistry there. If you're taking the proper dose and that is what your issue is, and you are talking to your doctor (which my son does on a regular basis), you should be fine.
Honesty with yourself and your doctor is the key.