My daughter is easily distracted and/or annoyed by auditory stimulus. ADHD has been ruled out by MDs and PhDs. The public school she attended, which we left 5 years ago, has no walls between the classrooms. The fact that she was extremely under-challenged combined with the noise and tendency to tune into other classes made for a crabby kid (with us, never the teacher) by the final bell.

Her teachers did not see a problem because she was a pleasant, compliant, A student.