I don't really know anything about this. The only thing I can offer is that, based on my own experience, if you carry around allot of stress, it has a way of breaking through to the surface at differing times & in different & unexpected ways. You don't always necessarily have the same symptoms all of the time. So one day you might feel like a robot, which I would guess might be a type of dissociation. Another time you might experience intense anger. Yet another time, you might just ache all over as though you're coming down with the flu... but you never actually get sick. At least this is the way it is for me...