About 1990 I popped my right shoulder from a softball throw, did all the rehab, stretching, anti inflams, cortizone, finally surgery for impingement syndrome. During rehab, tore the left shoulder while weight lifting. Same surgery 2 years later. Now a mail carrier and about 3 years ago, a mail box started to fall after I placed mail in it and made a quick lunging move with left arm as an automatic reaction. Felt a pop and numbness in left arm. Put up with this for 2 years, went to doctor, he suspected torn cuff, therapist said posture. After several weeks of stretches, numbness/asleep feeling gone, but pain and knots in back of shoulder persisted. Now 15 months after therapy, shoulder pain in trap area is unbearable, constant pain level around 5, typing this message is about a 7 and any load on arm fluctuates from 7 to 8. It is a steady pain and any load or placing body weight on arm while stretching for mail in back of truck increases pain. I have had accupuncture, massage therapy out of pocket, but I believe I tore my trap several years ago while making this sudden move. I have finally broken down and made an appointment with my primary care manager.