Time to Worry?

The hospital just called. They finally got my old mammogram films from NC, and on comparison want me to come back in for more films and a sonogram. I'll see them at 1:50 tomorrow. Chances are it's nothing, or as the lady of the phone was quick to say, "it's probably just a cyst, but we have to prove it's just a cyst."

So, how do I keep my head functional for the next 24 hours or so?