I recently went to go see a psychologist for ADHD. I've been told I have had it all my life, and my parents felt it was finally time to get me tested because I am now failing most of my college courses. When I got the results back she stated that I do not have ADHD because my processing speed and working memory speed as a child were average and above average. My parents and teachers feel as If I have hyperacitve ADHD. Is it even possible to have ADHD with high processing speed? I now am going to be seen by another psychologist to get a second opinion because my parents strongly believe I have ADHD. How do you think I should go about this?