Try finding a good osteopathic physician (do) who does gentle manipulation.
Online sources: biodo.Com, cranial academy.Com, academyofosteopathy.Org. A good chiropractor can help, as can other bodyworkers who do feldenkrais or alexander techniques. Yoga
w/ a good instructor to supervise your alignment may also be useful. Try tai chi
or qi gong. Above all exercise
regularly as prevention.