A fairly recent article discusses the problem of how and why clinicians miss indications of ADHD in girls. Of course, ADD and ADHD are somewhat different, and the "hyperactivity" symptom is almost surely more commonly seen in boys. Here's the link:
http://www.bbc.com/future/story/20190530-why-is-adhd-missed-in-girls?ocid=global_future_rss&ocid=global_bbccom_email_04062019_future
I must append a related comment. Hypnosis has been used (in conjunction with other modalities) to help students overcome attention deficit disorder!
