As many others have said, it was my extensive and chronic childhood abuse that paved the way for all that came next. Not only did this leave me with the psychological injuries that would later become apparent, but it also provided me with the series of cognitive schemas and emotional deficits that predisposed me to place myself in victimising and vulnerable situations.
Ultimately, it was an adult sexual assault that triggered my psychological collapse and led to my diagnosis. But I suspect that particularly as I was in receipt of proper psychological support within a fairly short timeframe following this adult assault, an otherwise healthy person may well have escaped the PTSD curse. For me, however, it was the proverbial straw that broke this little camel.
Maddog