Something I have just learnt about myself as a challenge to addressing PTSD is a disconnection from self.

I've lost myself, and my identity. The trauma has taken over. I don't have a strong sense of self, and therefore cannot identify what I need, what is helpful and when I'm using defense mechanisms.

The trust issue - something this new wonderful GP said to me that clicked. I don't have a felt experience of being vulnerable and that being a positive experience. So whilst intellectually I know that my psychologist is qualified, safe etc, I've have limited experiences with revealing myself, my trauma and that not being taken advantage of. So I've simply stopped being vulnerable/discussing feelings. And then my therapist is one person for one hour, I step out into the world with lots of people and deliberately not show myself (and my trauma) and even though this is my choice (defence) it reconfirms in my mind that I can't be vulnerable with people and that be a good thing.

So I would suggest 1) Disconnection of Self/Loss of Identity and 2) Building positive felt experiences in discussing trauma/s