This could be physical pain or emotional. Some examples from Smiths/ Moz....
"I'd hate the pain of the strain all over again"
"I crashed down on the cross-bar, and the pain was enough to make a shy bald ...."
"Thwacks you on the knees, knees you in the groin, elbow in the face...."
I think emotional pain will be most memorable to people over the years... "Emotional air raids" is another line to mention