Paraphrenia
A form of schizophrenia characterized by delusions (of persecution, grandeur, or jealousy); symptoms may include anger and anxiety and aloofness and doubts about gender identity; unlike other types of schizophrenia the patients are usually presentable and (if delusions are not acted on) may function in an apparently normal manner. Indicated by hallucinations and paranoid delusions, but without impairment in cognitive abilities and daily functioning. Causes of paraphrenia are neurological illnesses and stressful personal situations.