I wanted to introduce you to someone. His name is "Pain." He has two middle names, Emotional, and Physical, but no last name. I have known Pain for a long time now. He is very persistent. I have kicked him out of my life a number of times, but he keeps coming back for more. It seems that as Kryptonite is deadly to Superman, anti-inflammatories are a killer to Physical Pain, and happiness is a thorn in Emotional Pain's side.