Differential diagnosis of chronic pain disorder are :
-malingering
-factitious disorder
-general anxiety disorder
-post traumatic stress disorder
-somatoform disorder / pain linked with psychological factors
-major depressive illness
-organic disease
-malingering
-factitious disorder
-general anxiety disorder
-post traumatic stress disorder
-somatoform disorder / pain linked with psychological factors
-major depressive illness
-organic disease