When ever you hear about ADHD and other seemingly new conditions requiring medical treatment, look over at Europe and see if they agree. Just because the APA and other US institutions say ADHD exists, doesn't mean it actually does. Worth reading article below illustrating the difference between US and French psychiatry.
"In the United States, at least 9 percent of school-aged children have been diagnosed with ADHD, and are taking pharmaceutical medications. In France, the percentage of kids diagnosed and medicated for ADHD is less than 0.5 percent. How has the epidemic of ADHD—firmly established in the U.S.—almost completely passed over children in France?"