I suufferes for years with bad posture and back pain. I went to MANY chiropractors and massage therapists to no avail. It wasn't until I worked in a hospital that a Professor who was walking behind me asked did I have AS. I obviously had the dummy mode look because he signed me up for diagnosis. It turns out I have fusing of my vertebrae. Upshot, chiropractors are not doctors. Now I swim as often as I can get to the pool. I can play with my soon. It's great!