Hi,
Welcome to the ehealthforum. I am glad to help you out. The possibility of the pain radiating to the arms in costochondritis is quite less likely. Iâll suggest ruling out a cardiac problem by getting an EKG & a stress EKG. In case, the stress EKG is negative, the possibility of a cardiac disease will be virtually ruled out. If thereâs local tenderness in the chest, then the possibility of costochondritis is quite high.
I sincerely hope that helps. Take care.