When my son was 6 years old, he was on Ritalin for a few months and then Dexedrine (total 5 or 6 months). He developed tics. He would roll the bottom of his shirt continuously and if he didn't have a shirt on he would go for his shorts or whatever. He also had some throat noises. Once he was off all meds, it took him a few months to get rid of the tics. What you are seeing may be the residules of Adderall. Can I ask if it was regular Adderall or XR? Keep going with Straterra if that's all you can see of side effects. If it doesn't go away, then I'd look into it. How long was he on Adderall - that could also be indicative of how much longer he'll experience the tics.
My son just started regular Adderall 10mg yesterday. He is supposed to work his way up to 20 (add 5mg a week). I am closely watching him - as we all do - to see how it is affecting him. My niece who lives in another state has her younger son (my son is 12, hers is 6) on Adderall XR. She has stopped giving him the meds and is going to see the doctor because of how angry he's become. That is why there are so many of us out there still searching because what works for one does not work the same for another. Good luck!