Wait, doesn't this mean you get to go to Seattle Grace and have the beautiful Dr. Burke take care of you???
On a more serious note... I'm sorry. I wish I had something brilliant to say and make it better. Please make sure to take care of the stress side of things as well as the physical side. What I learned in Bio this year is that there are honest-to-gods correlations between cardio health and stress levels, and that people under a lot of stress are simply more likely to suffer from heart problems. So while they clean you out... start taking some yoga and meditation!
Sending mental waves of luck and health at you... :*