Every morning before I open my eyes to the rest of the world, I convince myself this is the day I’m going to die. It has to be. Anyone who’s lived as crappy a life as I have is bound to be suffering from something that will fast track them to the pearly gates. But to get a better handle on my diminishing health, I need to diagnose everything that’s wrong with me, its severity, and compute exactly how long I have left to live. My last episode began with an innocuous pain on the inside of my cheek. By running the tip of my tongue over the affected area,…