You have ADD: you have trouble at company meetings, you find yourself constantly daydreaming and being snapped back to paying attention when someone says your name.  You consistently lose your keys, forget appointments and are one of the most disorganized people in the office.  Your co-worker, on the other hand, has ADHD.  He is constantly moving, constantly talking and never seems to complete anything, just moves from one project to the next. He always looks busy but he says he never feels...