Do you guys ever just get this insane urge to do something like go running? I'm by no means a good runner or one who goes often, I am coughing hard and my lungs are burning like a stove after one 6:30 mile. I feel like I am addicted to the pain of it. I think its the same reason I do MMA, I have never felt the happiness I do than when I am sparring even if I am taking a beating. Do you guys get things like this or am I just weird? People think I am crazy when they see me look like death after training, I feel like throwing up almost every night after. Should I stop this?