Had the same thing happen to me, at times the pain would be intense, sometimes the numbness and tingling. Sometimes it helped to sit, sometimes it helped to stand, no way in heck to get a decent nights sleep.
MRI didn't help, they did find some problems in my lower back, but nothing specific to the issue I was having. I went to a pain management facility and they tried the steroid shots to the spine (painful and again, not very helpful to my problem) Other Doctors wanted to keep me on pain pills and while they did help with the pain, I don't like strong medicines and I really didn't like walking around in a buzz all the time and they didn't do a thing for the numbness and tingling.
I was in the emergency room one night (visiting my wife, not because of the pain, she was working that night) and a local doctor asked me why I was walking around with my right shoulder drooped and my head leaning to the right. I gave him a short recap of what I'd been going through for about two years and he asked me to come by his clinic the next day.
When I showed up the next day, he walked me through all the treatments I'd had and asked a few questions while poking and feeling around on my neck, shoulders and back. He finally had me stand and kept poking and prodding until he probed one place where I literally had to grab onto a chair to keep from going to my knees because of the pain.
In short, once he'd identified the area, he gave me a steroid shot there, wiggling the needle around as he dispensed it. While I was putting my shirt back on, I asked him how long he thought it would take before I knew if his treatment was going to work and he replied that I'd know something within 30 minutes or so. By gawd the man was right! Walking back to by truck, I could tell some difference, by the time I'd driven the 20 miles back home I was pain free.
That one shot gave me three years of relief, then I pinched something again while using manual post hole diggers and I had to go back for another dose. I've gone two years on that shot (and I gave the post hole digger to a neighbor)
I don't know how I was lucky enough to bump into this doctor, but he did have a lot of experience with sports injuries and treatment prior to coming here, but it was just like he knew exactly what was wrong and it didn't take him long to zero in on it.