The whole field of mental health is very difficult & odd. There are marked distinctions in behavioural (presenting speech/behaviour) with what may really be going within - there are huge gaps in medical/psychiatric knowledge & huge range as to what comes under different conditions. It's complicated as well by the whole ongoing anti/critical VS pro psychiatry argument, which largely seems to become primarily about polemics & politics.I was thinking to myself PTSD is NOT something you would want to have,I wish it was as simple as getting occassional anxiety!!
Until there is a far far better understanding of the brain, consciousness & psyche & how all of that fits together with everything environmental - i don't see that we're going to make much headway within all these areas. Currently the order of the day seems to be primarily mass diagnoses/medicating.
There is no real coherence between areas of psychiatry, sociology, psychology & alternatives.
There are also various very different, & really irreconcilable World views/paradigms concerning the understanding of the mind/psyche - self & reality.
i found the book 'Soul Centered Healing' by Tom Zinser very good, which primarily focuses on DID.