It Started around 3 Months ago, i couldn’t even think of anything that i could have done wrong that could have caused this, but sometime my collarbone starts hurting out of blue & if i adjust my shoulder, it goes away, i can move the shoulder freely, no problem, no swelling anywhere, no pain upon touching, but still while shoulders are relaxed, it causes sharp pain directly in collarbone, also when i move the shoulder back, i can feel a 'Click" in middle of collarbone, still without pain, but it clicks clearly like something is broken, other side doesn’t click.Any idea what it could be?