I seem to be pushing myself harder and harder. Just doing insane things to my body. Like work today, I pulled a 20hr shift...I walk crazy distances...My doc keeps telling me that If I keep it up, my knees will blow out. I just don't seem to give a ***** though...Maybe I'm just an idiot...I have no cartilage in my knees or shoulders, and I just keep pushing harder and harder...I have a weak heart..well kind of...it's a moderate to severe murmur...and I smoke cigarettes...I'm just a budle of health aren't I?...Just kinda spouting...