It says much about the strains at the top of the Nazi hierarchy that Kersten found von Ribbentrop suffering severe headaches, giddiness, partial loss of vision and stomach pains. Hitler himself had suffered from sharp, cramping pains in his right upper abdomen since about the time of the Machtergreifung, and since 1936 had been taking capsules prescribed by his personal physician, Dr Morell, consisting of bacteria cultured from the excrement of a Bulgarian peasant.
