9 A number of doctors gave evidence at trial including Dr Anderson, a pain specialist; Dr Krishnan, the appellant's general practitioner after Dr Duck; Dr Law, a psychiatrist; Dr Iyyalol, the appellant's treating psychiatrist after Drs Toussant and Abramowicz; Dr Baskaranathan, a consultant physician; Dr McCarthy, a consultant psychiatrist and physician; Dr Finlay-Jones a psychiatrist; Dr Batalin an orthopaedic surgeon and Dr Silbert a neurologist. Reports of other doctors were tendered by consent. There was a difference of medical opinion on whether the appellant was suffering from accident-caused post-traumatic stress disorder, somatoform disorder, or conversion disorder. Both somatoform disorder and conversion disorder involve the conversion of psychological stresses into physical symptoms. There appeared to be significant medical agreement with the proposition that the pain and disabilities of which the appellant complained had no, or no proportionate, organic cause. The trial Judge preferred and accepted the evidence of Drs McCarthy, Finlay-Jones and Silbert on the central medical issues.