True story: I was medicated in the 3rd grade for being hyperactive. (It didn't help, of course, speed only helps actual hyperactive kids, and I wasn't one.) In the fourth grade, Lucille Davis -- I hope hope hope heaven is everything it's cracked up to be -- said, "Take him off the meds. He's not hyperactive, he's bored. I send him to the school library for five hours a day, and he never gets in trouble there."
Not every noisy problematic child is ill.