*Constantly checking fansites for news about David, especially FanBlast and Fans Of David.
*Excessive screaming at the sight, sound, or (in severe cases) thought of David.
*A multitude of posters in your room and/or pictures of David on your computer.
See the complete list of symptons at DavidArchuletaFanBlast.com (there are 81 known characteristics, at last count).
One must experience symptons of ODD for at least 21 days before he or she is officially diagnosed.
There is no cure so far. However, no one wants to be cured of it, so research for a remedy has not begun.
NOTE: ODD is most common in females, but can also be found in males.
Doctor: Why, what's wrong?
Girl: I can't stop thinking about David Archuleta! Everything reminds me of him! I even ate lettuce for lunch, and I usually hate lettuce!
Doctor: How long have you been experiencing these symptons?
Girl: For at least a month.
Doctor: Ah, I see. There's nothing to worry about. You just have Obsessive David Disorder.
Girl: Oh. YAY! XD