hi, to get to the root of your problem you have to answer a few questions and understand a few things : 1. this pain may or may not be related to your old clavicle fracture. 2. did you fractured collar bone treatment go smoothly without any complications? 3. was it operated upon with implants inserted or were you given a sling for it? 4. did your clavicle heal and the fracture unite completely or did it fail to unite but was decided to ignore it? 5. did you ever feel this type of pain before after your treatment for your clavicle was over? 6. does your clavicle hurt now? 7. for 5 months of pain, did you consult a doctor? did medicines help? 8. did you sustain any injury recently to your shoulder? 9. can you feel your fingers tingling or any numbness around your whole arm or part of it? 10. does the skin change colour? 11. what movements of your shoulder are restricted, and are the restrictions due to pain or mechanical ? you should attempt to answer these questions, dont ignore a problem that is persisting for 5 months, it could be a nerve compression around you neck and shoulder region or from your spine as well, it could be a local damage to your shoulder joint region the bones and ligaments may be inflamed and may need a course of antiinflammatory medicines. ideally get another xray done and visit an orthopaedic. best wishes.