Hi,I'm 36 with cf and my back always hurts. I have all kinds of pain, like sharp, dull, moving, etc. through my back and shoulders and in my heart. I think it's because of the lung disease we have, even though we aren't sick at the time. I go to a chiropractor, a massage therapist and do easy yoga to try to stretch my muscles so my aches go away.Also, if you have a barrell chest, which is when your rib cage is slightly large and you may have poor posture, slumping forward of the shoulders, that causes major back pain too. Some cf's don't think they have a barrell chest, but most do.<img src="i/expressions/face-icon-small-smile.gif" border="0">