Why is this even a blog post? Just…stay with me on this one.
I know this isn’t the kind of question most people are sitting around asking themselves on a random Tuesday afternoon.
But it tends to come up when something doesn’t quite fit.
You’ve read about PTSD. Some of it resonates. The anxiety, the hypervigilance, the avoidance. But there’s a sense that it doesn’t fully explain what’s going on for you.
Or you’ve been given a few different labels over time, and none of them seem to hold the whole picture.
So, this question usually isn’t academic (for service users at least).
It’s more like:
Why does my experience feel different to what I’ve been told trauma is supposed to look like?
What I’m actually looking for when someone comes in
When I’m sitting with someone and trying to understand what’s going on, I’m not starting with a diagnosis.
I’m looking at patterns.
With what we’d typically call PTSD, there’s often a clearer anchor point.
Something happened. Sometimes one event, sometimes a few. And the distress tends to organise itself around that.
People might be dealing with:
- nightmares linked to a specific event
- avoiding places, conversations, or situations that remind them of it
- feeling constantly on edge, especially when something feels similar to what happened
It’s distressing, sometimes profoundly so, but there’s usually a sense that it’s connected to something identifiable.
With complex trauma, it tends to feel less contained.
People don’t usually walk in saying, “this one thing happened and now I feel like this.”
It’s more diffuse.
They might say:
- “I feel guilty all the time, even when I’ve done nothing wrong”
- “I don’t know who I am”
- “My relationships keep falling apart and I don’t understand why”
- “I either feel everything or nothing”
What sits underneath a lot of this is shame. Although most people don’t call it that. They call it guilt, or they just assume it’s something about who they are.
And by the time they get to me, many have been through multiple different diagnoses trying to make sense of it.
PTSD and Complex Trauma aren’t opposites…but they organise differently
It can be helpful to think about the difference like this:
PTSD tends to be more event-linked.
Complex trauma tends to be more pattern-linked.
With PTSD, the nervous system keeps returning to something specific.
With complex trauma, the nervous system often doesn’t feel settled in the first place.
That’s not because it’s “worse” or “more severe” in some kind of hierarchy. It’s because the underlying experiences are different.
What tends to sit underneath complex trauma
One of the biggest misconceptions is that trauma has to involve something obviously extreme.
Something you can point to and say, “that was the moment.”
But a lot of complex trauma is shaped by things that are much less visible.
Emotional neglect is a big one.
Not being seen. Not being soothed. Not having your emotional experience understood or responded to consistently.
Growing up in environments where you had to monitor other people’s moods to feel safe.
Where things were minimised or brushed aside.
Where you learned, often very early on, that certain parts of you weren’t welcome.
None of these always get named as trauma.
But they shape how someone experiences themselves and the world in a really fundamental way.
What it feels like from the inside
With PTSD, people often describe something like:
“There’s this thing that happened, and it keeps coming back.”
The memories, the nightmares, the physical responses – they’re linked to that experience.
With complex trauma, it often feels less like something coming back, and more like something that never really left.
It can show up as:
A kind of globalised sense of unsafety.
Or a constant undercurrent of shame.
Or a feeling that there’s something fundamentally wrong with you, even if you can’t explain why.
It becomes less about something that happened, and more about how you understand yourself.
That’s where it often gets misread as a personality issue.
Not because the person is flawed, but because the pattern has become embedded.
Where diagnoses fit into this (and where they don’t)
If we’re being precise, PTSD and Complex PTSD are both recognised diagnoses in the ICD-11*.
[*NB: that’s the 11th edition of the International Classification of Diseases, one of the main frameworks we use to guide diagnosis. You might be more familiar with the DSM, which is another diagnostic manual commonly used in mental health settings. CPTSD doesn’t appear as a diagnosis there… but that’s a conversation (or mild rant) for another day.]
For diagnostic purposes, in simple terms, PTSD tends to involve:
- intrusive memories or flashbacks
- avoidance of reminders
- a sense of ongoing threat (feeling on edge, hypervigilant)
Complex PTSD includes all of that, but the distinction here is that CPTSD includes what’s called disturbances in self-organisation:
- difficulties with emotional regulation
- difficulties in relationships
- a persistently negative sense of self
That framework can be useful.
But in practice, things don’t always fit neatly into those boxes.
People might have experienced complex trauma without meeting full criteria for either diagnosis.
Or they might have been given other labels that are trying to capture parts of the picture.
So I tend to treat these categories as guides, not definitive answers.
Why complex trauma often gets missed
PTSD is, in many ways, easier for systems to recognise.
There’s a clearer narrative:
something happened → symptoms followed
Historically, that’s often been associated with things like war, which are visible, acknowledged, and taken seriously.
There’s also something about that narrative that fits more comfortably within existing systems.
Complex trauma doesn’t always get the same recognition.
It’s often:
- relational
- cumulative
- harder to pinpoint
And because of that, it can be minimised or misunderstood.
It’s easier to label the individual than to look at the context they developed in.
You’ll often see people being described as:
- “too sensitive”
- “difficult”
- “emotionally unstable”
Without enough attention being paid to why those patterns developed in the first place.
How I think about it when I’m working with someone
The process of formulation is broadly the same, whether someone’s experience aligns more with PTSD or complex trauma.
I’m looking at:
- their history
- the meanings they made from those experiences
- how those meanings are showing up now
With PTSD, there are often a smaller number of specific memories that organise the work.
With complex trauma, it’s usually more interconnected.
When we map things out — timelines, histories, sometimes across generations — it’s not separate incidents.
It’s a thread.
And that thread runs through everything.
So when something happens in the present, even something that looks small from the outside, it pulls on that entire thread.
That’s why the response can feel so big.
Not because it’s an overreaction.
Because it’s connected.
What healing tends to look like
Within my own practice, I’ve noticed that the process isn’t completely different, but it often unfolds differently.
With PTSD, there’s often a more defined progression:
stabilisation → processing → integration
With complex trauma, it’s usually less linear.
It might look more like:
stabilising
then a bit of processing
then back to stabilising again
Then gradually moving forward again.
Because we’re not just working with one or two experiences.
We’re working with patterns that have been reinforced over time.
The shifts, when they start to happen, are often small at first.
Someone might notice:
- they can sit with an emotion for a little longer without shutting down
- they recognise a pattern before it fully takes over
- they set a boundary without completely losing the relationship
Over time, those small shifts accumulate.
And things that once felt overwhelming start to feel more distant.
Not gone. But no longer happening in the present.
If you’re trying to make sense of your own experience
You don’t need to land on the perfect label.
For most people, what’s more helpful is understanding the pattern.
If your experience feels:
- layered
- relational
- tied into how you see yourself
- difficult to trace back to a single event
then thinking about it through a complex trauma lens might make more sense.
Not as a fixed identity, but as a way of understanding how your responses developed.
If you take away nothing else, remember this:
There’s nothing inherently wrong with you for responding the way you have.
Whether your experience fits more with PTSD, Complex PTSD, or something in between, those patterns developed in context.
They made sense at the time.
And they can change.
If you want to understand your patterns more clearly, or you’re starting to recognise yourself in this, you don’t have to figure it out alone.
We offer trauma-informed therapy grounded in formulation, context, and relational work.
You don’t need a perfect label to begin.