Hello, I don’t know about the anosognosia, luckily my son isn’t afflicted with this.
However, we had this experience when he was about 20. A year and a half after his first episode of psychosis, which included some visual hallucinations (black dots in his vision, mostly), delusions of spreading love and a fixation on a particular young woman, he had seemingly completely recovered. He was not using pot because of a probation situation.He was doing so very well that we, with the approval of his psychiatrist, slowly tapered his risperidone until he was off. it It took a couple of months, he was on a low dose.
He was making plans to go to school and had almost completed registration about a month after the last dose. He seemed a little disorganized but denied anything was wrong. About two weeks after he began school registration he began a decline that included dark moods, staring, silence, We recognised it and restarted his medication with the approval of the psych. Three days after that he had a very dark episode of psychosis and badly injured me with a kitchen knife.
I would be very careful of decreasing or stopping meds and of restarting them. Please do so only with the approval and CLOSE supervision of a competent, engaged psychiatrist (ours wasn’t).
Sz is an individual illness. It presents differently in people and the course of it is individual also. In my son’s case he relapsed quickly- I’ve heard of other stories where it took years and months.
Good luck. It’s a bumpy ride any way you look at it.