<s>[INST] Hi, I have had 3 spine surgeries at L4/5, discetomy, laminectomy, dynesys fusion and then screw replacement.I live with chronic pain and just recently this has migrate up my spine, I have a tingling (pins and needles) sensation between my shoulder blades but more on the left side, and just before this started I had (and still have) awful pain in my sternum that tightens around my rib cage life a muscle spasm.  Do you think this is all nerve related? [/INST] Thanks for writing to us.The shoulder and sternal pain has nothing to do with L4-5 level level. However this pain may be due to cervical disc prolapse with nerve pressure. I would suggest to consult a spine specialist ho get a thorough exam and if needed get mti cervical spine. Thanks. </s>