Obsessive-Compulsive Disorder Obsessive Compulsive Disorder- pg. 1 Introduction and Thesis Introduction When I was young, I used to constantly hum one solitary note every few seconds or minutes throughout the day. I also used to glide the tips of my fingers right behind my ear just so I could be assured that my hair was in place. It was almost impossible to avoid. I was continually asked the question, "why do you do that," from my classmates and friends. It was sometimes embarrassing. ...