I've got my final interview with the district manager of my prospective employer, and as luck would have it.............

I've got a cold, for the first time since November or something like that.

This is important, and while I know that I won't miss the interview, unless I am dead, or die on the way there.....

It's just frustrating to know that I won't be "100%" for this important day.

Why do things like this happen?

Has this happened to anyone else, sickness or bad timing of things popping up when something important is right around the corner?