What is pain? Where is pain?
Pain is the body's an alarm system that triggers a threat to the body. Oh I just stubbed my toe, this threat of injury signals the brain of the threat injury and move away from further damage. This alarm system response of pain helps us to safely navigate the world fairly free from bodily injury.
However sometimes the brain 's alarm system goes into a loop and cant reset from the initial threat injury. The signaling system wires gets crossed and consider itself under threat constantly.
This brain wiring system can be reset with fuel and movement.