For months now (not too sure on the timeline), there has been one spot on my back that every once in a while will twitch or spasm. I'm assuming it's a pinched nerve or a muscle that is twitching. It doesn't cause any pain, but it is incredibly annoying. I used to feel it just every now and again, but lately it's been getting a lot worse and sometimes there are days where it does it almost all day long. All I want to do is to have someone massage that area in hopes for it to go away, but I haven't been able to do that. It's just under and to the left of my right shoulder blade, and it's driving me insane.
Is it a nerve? A muscle spams? What could have caused it? How do I make it go away?