it's just anxiety, unless you have asthma but asthma usually is helped by anything that speeds you up as long as you stay hydrated, I have asthma and am all too aware of this. Adderall always helped my asthma, same with Ritalin and Dexedrine.
but yeah, take the xanax or just ride it out it'll pass.
or keep taking the Adderall and you'll develop a tolerance to that aspect of it.... I can't honestly recommend this though.