If they can call ADD a disorder then I can certainly name a few disorders of my own.

MMD (Matrimonial Misery Disorder). This is actually widely recognized by men and women everywhere. Sometimes it can be effectively managed with ant-depressants or off the shelf items like beer. In severe cases a "Spousectomy" may be required. This is a last resort surgical intervention because side effects can be devestating. Losing half your stuff really sucks.

Now all I have to do is get the church of scientology to publically dispute the existence of this "Disorder" and I'm on my way baby!

P.S. No I'm not bitter. :-)

I have one. Its "Post-Pixel Depression". This interesting disorder occurs among gamers who become absorbed in an highly stimulating video game, usually (but not always) a huge sprawling RPG with a great storyline.

The gamer has lovingly coaxed the cast of characters from crummy Level 1 into a perfect team of heros, hung in there through plotline twists and turns, and come to identify with the characters as the game progresses. Then, after all the blood and sweat and tears, the final boss is confronted! This is the culmination of all the gamer's hard work! The battle with the final boss may be untertaken amid great gnashing of teeth and tearing of the hair, possibly some moments of profanity, ending in a moment of release.

The final boss is defeated, and the gamer feels a period of euphoria, followed by the onset of Post Pixel Depression. The period before the depression sets in varies from gamer to gamer and even from game to game among serial gamers, and can manifest in myriad ways. The symptoms may be quite obvious or very subtle.

Some symptoms of PPD:

Sobbing hysterically during the final cutscenes.
Compulsive downloading of the theme music, to be played repeatedlyby the distraught gamer.
A period of refusal to even consider another game (IE: "What's the point? There will never be another game like Final Fantasy VII and besides- AERITH IS DEAD!!")
Alternatively, an uncontrollable compulsion to replace the beaten game with another game as soon as possible.
Irritability with family and restlessness while the gamer sorts out the deep emotions triggered by the end of the game.