I see lots of patients who present with shoulder problems. These issues are rarely due to a traumatic injury, but tend to start with microscopic muscle tears and strains that happen as a response to heavy exercise.
Shoulder pain can be difficult to shift. Due to the highly mobile nature of the shoulder and the fact that the shoulder has less integrity than many other peripheral joints (ie the muscles of the area are primarily responsible for its integrity), there is increased risk of injury to the structures of the shoulder. The good news is osteopathy can help with many of the symptoms of shoulder injury/dysfunction, and can also help manage the associated pain.