Suggest Treatment For Severe Collar Bone Pain

Its about my collar bone. The thought of someone touching them, watching someone touch someone elses collar bones, even physically touching my collar bone emits strong pain, rendering me helpless and nearly in tears. The pain is hard to describe and the level of it even more difficult. I dont know why I have this pain because it is not normal. I dont even remember when it started. Please, why does this happen and can I get rid of it?