A method of monitoring symptoms of a person includes repeating, over a period of time, the steps of: selecting, by the person, one or more symbolic representations corresponding to one or more symptoms from a predefined set of symbolic representations presented to the person; and electronically recording data regarding the one or more symbolic representations selected by the person such that the data is electronically accessible later for generating a history of the symptoms of the person over the period of time. The data is transferred over virtual networks using virtual dispersive routing and stored in dispersive storage area networks (SANs). The data is classified as trusted, corrupted, invalid or uncertain, and/or as trusted, ambiguous and inadequate.