- Auditory hallucinations, such as hearing voices
- Delusions, such as believing a co-worker wants to poison you
- Anxiety
- Anger
- Aloofness
- Violence
- Verbal confrontations
- Suicidal thoughts and behavior
"Positive symptoms" (such as hallucinations and delusions) are usually more prominent than mood/contentration/attention problems.
Schizophrenia is a mental illness that causes hallucinations and delusions. There is a family member that is schizophrenic, and he is in the process of healing. He has had some anger issues in the past, also, he has had some symptoms of catatonia. Sometimes, he doesn't realize what he's doing or saying. That is also a symptom of schizophrenia, not realizing how your actions affect other people. Catatonia means not moving, interacting, or being aware of your surroundings for long periods of time.