I have seen various doctors over the past 18 months of my upper back pain. I've gotten shots, tests done, etc and am 26 y.o. I have had mostly positive encounters with doctors, but many dismissed me as being young and in perfect shape. If I had to choose, I saw a physical rehabilitation doctor who knew my case, and just told me to go for a walk every day for 8 weeks to get blood flowing in my back/shoulders. This just seemed like a cop out to me after everything I told him, but I understand that these doctors can be unsure of what is wrong with me. Walking can definitely be good and work as the real thing or a placebo, but again this felt like a cop out suggestion.