I haven't read that particular book (Pete Walker's book is pretty amazing though!).
However, if it helps at all:
I have the freeze type of cptsd
So, to break this apart:
With PTSD, we have an overactive amygdala. That's the really prehistoric part of the human brain, right in the middle, that controls our fear response.
A
typical amygdala will identify a massive imminent threat (OMG the lion is going to eat me!) and it will short circuit the rest of brain and intervene with an immediate response to save our life. Instead of our brain processing stimulus and problem solving the situation and 5 minutes later we decide how to deal with the lion, the amygdala kicks in with very basic, but very effective, survival techniques.
Those survival techniques are pre-wired, and once the amygdala hits the alarm, our entire body instantly responds with one of a few options: fight, flight, freeze, flop, fawn.
A person with PTSD has an
over-active amygdala. So, our amygdala hijacks our brain and sends our whole body into one of these survival states all the time, even when it's patently not required (for us, it can be more like, "OMG, a yoga class, I'm going to die").
Each of us as individuals will be pre-disposed to use some of those survival programs more than others. For example, you may typically freeze when your amygdala is activated, whereas someone else with PTSD may more typically go into fight mode.
They're all the same disorder. The same thing is happening (super-charged amygdala), even though a freeze response
looks completely different to a fight response.
The thing that's important? Is probably understanding that irrespective of whether you freeze, or fight - the same thing is happening. And more often than not?
Treating it is the same. So, you don't send Freeze Sufferer to PTSD Treatment Room 1, and send Fight Response Sufferer to a different therapy group down the hall.
CPTSD is, in essence, all of the above,
and all of the typical PTSD symptoms,
and some additional symptoms. The different fear responses aren't hugely relevant to treatment here either.
So, there isn't really a treatment for the "freeze type of CPTSD". There's just 'treatment for PTSD'. And add a few more years if you have the complex version.
It sounds complicated, but actually, it will hopefully simplify what you're looking for in terms of treatment, or answers to your particular issue, which is:
my Dissociations are strong and disturbing
Dissociation is something else entirely, yeah? When you're dissociating, you may end up acting (even feeling) much like you do when you freeze. But they're very different.
Why did I just type all that out?
Freezing and dissociating - 2 things I do often! Addressing them is
vastly different.
If I freeze all the time, that's deep PTSD funk territory. My amygdala is super-charging, and fundamentally changing brain chemistry and the way different parts of our brain are behaving? Is no easy task. And actually, it's almost completely irrelevant at this point that I have
complex PTSD, because the amygdala issue? Is universal to both.
But, if my problem is that I
dissociate all the time (may look the same, and often feel the same)? That can be waaaaay easier to address. Through Grounding techniques.
If I set my heart on practicing my grounding techniques throughout the day, every day, I can expect to make serious progress on my dissociation problem within a matter weeks. Not months or years (which is what trying to re-program our amygdala can look like). Weeks!!!
Teasing out whether I'm freezing or dissociating may be a slippery, tricky task in itself. But one worth taking the time to do. Because if the issue is dissociating? Grounding techniques and party on. But if the issue is more "Hello PTSD, welcome to my Freezing party", then definitely it's going to be a lot more work, and waaaaay more complicated.