Congratulations, I hope they help you do what you want to do.
Smoking is not a problem (well except for the smoking part). It has no effect that I know of on how the medication effects you. It will be interesting to see if your desire to smoke gets less. Many times smoking is due to stress, etc. which the medication can help with.
In terms of dizziness, I have not heard of that being a side effect. I would say give it some time. But also note when it is happening. Are you on an extended release Adderall or the IR? Because an XR will release an amount several times during the day which you might be responding to. But, I would look at other factors first. How long does the dizzy effect last? What are you doing just before it happens?