<s>[INST] Hi, I have this nagging pain in my back on the left side near my shoulder blade. The pain is not there all the time, it comes and goes. It feels like someone is poking me in the back. I can take my thumb on my left hand and put it on the spot where the pain is. This has been happening for about a month now. [/INST] Hello,I have studied your case. It can be due to muscle spasm of the shoulder girdle muscles. Some time it can also be due to Trapezitis. So I would recommend you to follow these instructions.1.Hot water fomentation.2.Volini gel local application.3.Avoid weight lifting from that shoulder.4.Some time you might need steroid injection in the tender spot.   I hope this answer will be useful for you. Let me know if there is any other  followup questions.thanks </s>