The following is an interesting read which I can relate to:
The occurrence of schizophrenia as a worsening of schizoid traits previously present has been a topic of interest for some time. However, it is generally the case that information on a day-to-day basis about the premorbid personalities of psychotic patients when they come into care is fragmented and limited. In this article, I describe my own experience of schizoidism, into which I had insight, before I became psychotic. I also give some comments on how this worsened into psychosis.
As is the following:
It is interesting to consider the different approach to treatments for SPD
Not self-diagnosing myself with SPD, just found the overlap interesting.