I've been having this burning, muscle spasming, tension pain in my left shoulder. Was told by a physician whom ran no test that it's probably sciatica and was referred to a physical therapist. Was told by a pharmacist filling my pain meds that it sounds like it could possibly be a torn muscle getting inflamed. I left my job since I was being over worked without concern of time needed to heal, but there might be another cause. I'm no longer lifting and moving things daily so I thought the pain had ceased. Now after a recent string of stressful events, the last being an argument with a close friend where I was blamed for something that wasn't my fault, I was in intense crippling pain. The both shoulders and even my upper arms were spasming and tight. even my knees and calf's were burning and locking. I've come to believe it's stress... but if I can't escape the issues causing the stress how am I to handle this. To be in crippling pain is to be rendered unproductive; I can't work if in pain. And now I may be suffering from anxiety.