Hi,Dear,Thanks for your query to HCM virtual Clinic. I studied your query in all the details put forth by you. I understood your health concerns. Cause of the health problems you queried- There are many causes of the lump below your collar bone.Its sore to touch and is with history of pulled shoulder Cause in your case- With the above data,you seem to suffer from- -Coraco-clavicular ligamental contusion with shoulder pull.The lump and the bruise is due to the shoulder pull causing coracoid trauma by the pull. -Possibility of coracoid fracture also needs to be ruled by Xray of the shoulder part. -Other possibilities of acromioclavicular associated trauma needs to be ruled out,as it could be missed. Hence would advise you to consult ER OrthoSurgeon , who would rule out other causes of such a lump and would help you out with the fist hand information. So take his Second Opinion, on the above suggestion,as he would advise you with fist hand clinical information. Hope this would resolve your query with full satisfaction. Welcome for any further query in this regard to ME by direct question at HCM. Write excellent review and hit thanks, to narrate your experience ,which would improve my rating for many other visitor s to HCM. Wishing you fast recovery. Have a good day. Dr.Savaskar M.N. Senior Surgical Consultant. M.S.Genl-CVTS