At this time, one of our good friends from high school had gotten really sick, and the doctors just sort of gathered around her charts and just shrugged their shoulders at one another.  They were never quite sure what she had exactly, as she would display symptoms that would completely disregard the diagnosis received for the symptoms she displayed the previous day.  It was pretty much an episode of 'House', minus the arrogantly rude doctor and completely illegal medical procedures.

I'm not sure if they ever really found out what was wrong with her.  She eventually got better, and got some nice hospital bills out of the whole ordeal, though.