that spot you marked:
it is precisely one of my bad spots. one side. it feels like the source of much, including coathanger and ulnar nerve issues. worsened by typing etc. is that near the place on the spine above is c# and below is t#? i have a bulge there.
one doctor told me it was common with retroviruses. but i don't know where that information came from. hiv- htlv-.
Samuel, I have the same spot, on my left. Then it travels from that spot on my left up to through the neck like a wire along the left side of my spine. As a result I'm often pulling hard on that side. Oddly I don't have much pain out wide, but the closer it is to the head, neck and upper shoulders and that spot on the spine along my left side, the worse it is. It's like tightness and inflammation. Also TMJ on that side. Same with the nerves that go to the elbow as you mentioned.
I have nothing to offer, I have never been able to fix it, find out what it was. Sometimes it feels like a mass of some sort is in that spot twisting all the nerves around. Osteopath no help, MRI normal. No stenosis. Massage and heat makes it worse, muscles relaxers don't help. Tai chi to move the nerves did not help. There's a thread on PR about neck compression that I thought might be related, or else I thought maybe some form of myatonia.
Very frustrating!