I am a 55 year old female having intermittent pain that presents itself slightly right of my mid- upper back (bra line). The pain is on and off and can be only soreness to debilitating. The pain feels deep but I can feel a knot in the area of pain in my back .I was a heavy smoker for 20 years but I did quit over 20 years ago. I do have shortness of breath after climbing 2 flights of stairs. I am about 25 pounds over weight but I am healthy other wiser. I have been having this intermittent pain for almost a year. Thank you for your help.