We are talking about three separate feelings. When a person smells, tastes, feels, hears, or otherwise senses something that does not exist it is called a hallucination. Delusions are false understandings about what is going on in the present. A paranoid delusion, on the other hand, involves someone believing something of a persecutory nature that is not true.
The characteristics of being paranoid schizophrenic are delusions, hallucinations, disorganized speech, disorganized behavior and the so called negative symptoms.
Schizophrenia has symptoms that would not be seen in Paranoid Personality Disorder. While PPD have delusions of persecution, they generally do not have hallucinations of an audio, or visual nature.
The speaker in "The Raven" becomes paranoid when he begins to hear strange knocking at his chamber door and starts questioning his sanity as he interacts with the mysterious bird. This paranoia deepens as the raven's repeated response of "Nevermore" triggers intense emotions and memories within the speaker.
Individuals with paranoid schizophrenia and persecutory delusional disorder experience what is known as persecutory delusions
According to the autobiography of John F. Nash Jr. on the Nobelprize.org website:"The mental disturbances originated in the early months of 1959".Please see the related link.
delusions of grandeur
Manic depression is now called bipolar disorder. Some major symptoms include extreme insomnia, hallucinations, paranoid rage, grandiose delusions, racing thoughts, and inappropriate irritability.
They suffer from frequent hallucinations and delusions.
I'm not sure if this is what you want. Maybe being paranoid?
Paranoid type schizophrenia is a mental health disorder that primarily affects the brain and nervous system, rather than a specific body system. It is characterized by symptoms such as delusions and hallucinations, which are related to abnormalities in brain function and neurotransmitter imbalances. Treatment typically involves a combination of medication and therapy to manage symptoms and improve quality of life.
Schizophrenia often presents as auditory hallucinations, paranoid or bizarre delusions, or disorganized speech and thinking, and it is accompanied by significant social or occupational dysfunction. Buddha's interactions with his followers, his sermons and lectures and the logic of his observation sand conclusions would indicate that the was not schizophrenic.
It was Aesclepiades.