Does costochondritis come and go frequently and very painfully. one minute it hurts next min it goes away, then comes back to same spots and different?

Costochondritis: Costochondritis doesn't usually move around as the inflammation persists in an area where there is associated tenderness to the touch. The discomfort is not a fleeting type as opposed to pinched nerves in the rib cage which give a sharp,shooting pain. See your physician who can differentiate the different types of chest wall discomfort by examining you.