Ive had stabbing pain in the front of my upper arm for 5 days now, it started as a kink in my neck and i noticed muscle twitching several times a day.

See ortho : You should visit an orthopaedic surgeon. You need a full physical exam and some imaging to diagnose the problem. The brachial plexus exits the cervical spine and controls the muscles and sensation of our upper extremity. A herniated disc or bone spur pinched nerve produce symptoms in shoulder or shooting down the arm. Several other injuries or conditions can cause your pain. See MD right away.