Pain in the shoulder may not be what it seems. It could be nerve pain. This can come from the neck or from the Thoracic outlet which is the circle that is formed from your collar bone and your ribcage. This is an area where there can be nerve impingement.
Range of motion of city the neck and the shoulder can help to differentiate. Your PhysioPro is trained with differential diagnostic tests to see if the pain is truly from the shoulder.