A severe mental illness, often recurring and sometimes progressive, in which the behavior becomes withdrawn and out of character, the intellect and emotions deteriorate and hallucinations may occur.
Condition in which person's perception of reality differs from that of most others. Commonly believed to be an illness; in some instances this may be the case, but in others it may be that the person exists in a transcendent state that has not yet been defined or detected by science.
I live two lives. One is as a Web developer and programmer on a planet called Earth. The other is as an intergalactic diplomat from the Ammethane system. Both are equally real to me. Neither has adversely affected my existence as a functional being in the opposed reality. But most of you who read this would say I suffer from schizophrenia.