Answer by  
                                                                                          judithr105 (269)
                                                            
                          
                          
                                                          Pain in muscles and joints can be a host of different medical problems.  Arthritis, is a condition that causes joints to become enlarged and painful.  Fibromyalgia and RSD are other condition which cause pain in the muscles.  I would contact your physician for a referral to a Rheumatologist for further testing.