Suggest Treatment For Severe Back Pain

I have experienced pain in my back the will move from my lower back to between my should blades and ribs, recently it started there as normal but this time move to my chest, I have also experienced pain in my buttocks and limbs. I was given a ecg, results were normal, my blood test showed no inflamation markers and no ruemetiod issues. This pain comes and goes over the course of weeks some times months with small periods of relative good health. I have trouble sleeping and am often worn out and tired constantly during these periods of pain as well as sometimes being virtually debilitated because of the depth of the pain