While it is possible to come out of a psychotic state without medication, I would say that usually medication is required, though not in every case. Specifically, antipsychotic medications are typically used to decrease or eliminate a psychotic state. It is interesting that you were able to do this without medication.
According to WebMD’s website: “You doctor may recommend Coordinated Specialty Care (CSC). This is a team approach towards treating schizophrenia when the first symptoms appear. It combines medicine and therapy along with social services and employment and educational interventions. The family is involved as much as possible. Just what your doctor recommends will depend on the cause of your psychosis. Your doctor will prescribe antipsychotic drugs — in pills, liquids, or shots — to lessen your symptoms. He will also recommend that you stop using drugs and alcohol. You might need to get treated in a hospital if you’re at risk of harming yourself or others, or if you can’t control your behavior or do your daily activities. Your doctor will check your symptoms, look for causes, and suggest the best treatment for you. Some clinics and programs offer help just for young people.”
I disagree with your psychologist who advised you against seeing a psychiatrist. You may have had other delusions and not been aware of the fact that they were delusions. That is cause for major concern. Psychosis does not occur in a vacuum. There is a reason for the psychosis and it is definitely caused by something.
Something else to consider is the possibility of an undiagnosed neurological condition. It is unusual for psychosis to occur, but it is even more unusual for it to last for years and then to disappear without intervention. For that reason a thorough exam is necessary. You can be examined by a psychiatrist, a neurologist, or both. I believe that it is imperative that you be examined. You may never be able to definitively determine if you were psychotic but a thorough examination may be able to rule out a medical problem.
Your psychologist believes that you may have been psychotic for a number of years. If he or she is correct it is a serious issue that needs to be investigated. The danger of course, is that the psychosis or the neurological condition will return. This is an outcome you would like to avoid. I wish you the best. Please take care.
This article has been updated from the original version, which was originally published here on December 17, 2009.