A.G.
Try reading the book, "The Out-of-Sync Child". My daughter was not "officially" diagnosed with ADHD at 3, but a psychiatrist told me she thought my daughter had it. Her pediatrician agreed it was likely. I just was not comfortable. She has since been diagnosed by an Occupational Therapist with Sensory Integration Disorder, and I am very confident this is the "fit" for her. I read in another book the difference between ADHD and SI-- Both are equally distracted in the classroom, (let's say by some trucks driving down the street outside the window)-- the ADHD child is interested in the distraction, the SI child is overwhelmed and frustrated by the distraction because she cannot concentrate and do what she is supposed to do. Hope this helps!
A.