It's interesting to see what people have said to cause the clunking because I have clunking of the right shoulder which happens when I move my arms both to the side and in front of my. My sports doc has told me to ignore it. I do however think that the clunking came as a result of my dance injury. The clunking has been reduced from doing stabilisation exercises of the shoulder girdle (protraction and retraction in different positions) along with abduction and adduction exercises with a theraband.

I just thought i'd add some insight from a patient's perspective.