Dear friend,
Are you referring to transcutaneous electrical nerve stimulation?
I did try it, because i have it for my upper back (surprizingly same side) problem.
It is a spasmatic muscle in between the shoulder blade which has been developing even since teenage years. I just ignored it for most part, now it is daily pain, but using TENS usually helps. Also capsaicin liquid roll on application appears to help.
Other then that, posture, making sure that the muscle are not strained too much, is the only thing that helps. Working a job such as standing all day or even sitting and using computer (mouse etc) also might trigger it. It might be stress related as well, so good
bed rest, plenty of sleep helps.
And yes, I have been told by the doctor and seen online that it is common to experience neck, and upper back pain along with TMD.
Mine started with back/neck pain first. I remember even as young as 14, caring a backpack full of books home by walking 10-20 minutes and then requiring just lay in bed for at least couple hours so that the pain would go away.
I suppose it was not a good idea to ignore the pain.
