Dude, that list is massive.
My playtime is dictated my my mood, which vacillates violently between the urge to play different genres and settings. Whether or not I'm in the mood for an RPG or a platformer, a whimsial game or a survival horror all changes from day to day. As such, I always have a few games open at any given time.
But I don't have a disorder or anything. You might want to seek professional help for this one, Alex