This has fed the theory that unexpressed anger can produce a host of psychosomatic reactions, ranging from hives and headaches to cancer and heart disease. ''Anger is a form of energy and you can not destroy it,'' Dr. Madow said. ''When it is not dealt with it can lead to such problems as headaches and depression.'' The analyst, who wrote a book called ''Anger: How to Recognize and Cope with It'' (Sc