When i work out i get this very sharp pain right above my left breast.hurts worse the deeper breathes i take.that spot is soar for a few days after?

Muscle or nerve: This sounds like a strained or inflammed muscle or a pinched nerve in the rib cage. I recommend resting the area, applying heat, liniment and, if you can take them, nsaids to resolve the problem.

Musculoskeletal : Sounds like a musculoskeletal pain. See your doctor and take some anti inflammatory medications if your doctor is ok with you taking those.