delusions of grandeur schizophrenia symptoms
7. Get help from a doctor now âº. No: Delusions can be one of the symptoms of schizophrenia, but it does not mean that you definitely have schizophrenia. There are other mental illnesses that can have delusions as a symptom such as severe depression, bipolar disorder, schizoaffective disorder and delusional disorder....Read more.. Get help from a doctor now âº. No: Delusions can be one of the symptoms of schizophrenia, but it does not mean that you definitely have schizophrenia. There are other mental illnesses that can have delusions as a symptom such as severe depression, bipolar disorder, schizoaffective disorder and delusional disorder.