oof sounds like maybe adderall isn’t the med for you? I always make sure to take my meds with food because when I was on zoloft it gave me terrible stomach pain if I took it on an empty stomach. Plus, stimulants are appetite suppressants so it’s possible that could be making your nausea and dizziness worse. If you don’t want to try switching meds, maybe try eating a bit more before you take your dose and trying to eat snacks through out the day if it suppresses your appetite too much to eat a meal.
My instinct though is to tell you to try a different med because those side effects don’t sound fun.