1968 , he was noted to be more reclusive , more depressed , and getting worse . After service , a December 1992 VA examination report reflecting a history of having come under small arms fire in a helicopter during service in Vietnam notes that the Veteran was transferred by helicopter on a weekly basis to psychiatric appointments . Although the June 1969 separation examination report shows psychiatric evaluation was normal , on the accompanying medical history the Veteran indicated that he had depression or excessive worry , memory loss , and nervous trouble . With respect to diagnosis , and although a November 2011 VA examination report reflects a diagnosis of somatoform disorder , a November 2010 VA examination report noting a history of the Veteran '