I'd be interested in your studies and book - can you share a link?

I follow the research. Psychosocial factors have been studied to death and certainly aren't important for recovery, particularly given recovery is not a particularly common outcome (for CFS/FM at least). (If only they were, it would make recovery a lot easier.) They are, however, peddled by people giving false hope to the vulnerable and desperate.

IMO your certainty about what is or isn't the cause of all those conditions is certainly not justified. For example, how can you be so sure Sarno is "right on the money" when you admit you haven't looked into it very deeply? And Sarno's theory is very much about emotional release, that's the whole point. Gotta get that repressed rage out.