D.O.'s (Doctors of Osteopathic Medicine) and M.D.'s are considered to be equivalent degrees. D.O.'s, however, place additional emphasis on the musculoskeletal system, and also can perform hands-on manipulation (called osteopathic manipulation).
Your pain can be the result of an acute trauma, an overuse injury, or in many cases, a natural process (such as arthritis). In any case, healing has occurred incompletely and integrity has been lost. There are several reasons why this may have occurred.