Keep cracking it. The spinal column has fluid within the cartilage and that makes a popping noise (crack). If you don't crack it a while, the fluid kinda builds up and begins to hurt.
Suggest you stop that activity. But to avoid the pain, crack it only when you feel the pain. In a while the fluid will go back to normal.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.