The pains are constantly present and are located between my spine and
blade, my left trapezoid, and
my left chest between the breast bone and
nipple. The pain increases when breathing deeply and also while lying down on my back. But the weirdest part of all of this is while lying on my back or on my left side, if I breathe in deeply I can hear & feel clicking or popping deep within the chest. This also occurs on the deep exhale.