What causes a sharp 5 second pain from center of chest between breasts straight across to right chest/breast?feels almost electric.pcp says not heart.

Chest pain: Atypical chest pain is difficult to deal with at times. I see you have had an EKG and I assume it was normal. Although you may not be having Acute Coronary Syndrome, you may be having some type of pericariditis or pleurisy. Costochondritis or sternal wall pain. The sharp pains could also be caused by intercostal irritation.

Nerve pain: this can vary from A pinched nerve to inflammation of the cartilage between the breast phone and ribs, and other things. the electric quality suggests A nerve is being stimulated for some reason. A reason might be recent stRenuous exercise especially In a person who never exercises.

Atypical chest pain.: This is not cardiac. Most often these are muscle spasms from injuries, from stress or infection. If you are in doubt get a stress echo. You learn a lot from it. See a cardiologist.