It does raise the possible explanation of being overly self medicated.....but I still don't believe it. That profession requires a basic level of intelligence and communications skills of which we have absolutely no evidence.
Psychologists do tend to be an eclectic/eccentric sort, in my experience. And the idea that many mental health practitioners have a personal background with mental health issues was shared with me by a number of mental health practitioners. Its a fairly “open secret” among their ranks.