What Is Complex Trauma? | Inner Core Psychotherapy Ottawa

Young girl holding flowers outdoors, representing childhood experiences and the lasting impact of complex trauma.

When we think of trauma, we may picture a single overwhelming event, such as an accident, natural disaster, assault, or sudden loss.

But trauma isn't always a single moment.

For some people, traumatic experiences happen repeatedly or continue over months or years, particularly within relationships where safety, care, and trust should have been present.

These experiences are often described as complex trauma.

Complex trauma can affect not only how you remember the past, but also how you respond to stress, experience emotions, relate to yourself and other people, and feel in your own body.

Sometimes the ways you learned to survive become so familiar that they feel like part of who you are.

The effects can feel deeply rooted, but they do not have to define the rest of your life.

What Makes Trauma "Complex"?

Complex trauma commonly refers to repeated, prolonged, or interpersonal traumatic experiences.

It is often associated with experiences beginning in childhood, such as abuse, neglect, exposure to violence, inconsistent caregiving, or other situations where safety and connection were disrupted.

Complex trauma can also occur in adulthood, particularly when someone experiences prolonged or repeated situations involving fear, control, harm, or powerlessness.

Repeated interpersonal trauma can affect many areas of life, including emotional regulation, relationships, self-perception, dissociation, and a person's sense of safety.

Complex Trauma and Complex PTSD Are Not the Same Thing

It can be helpful to distinguish complex trauma from complex post-traumatic stress disorder (CPTSD).

Complex trauma describes a pattern of traumatic experiences and their possible effects.

CPTSD is a specific diagnosis recognized in the World Health Organization's ICD-11. In addition to the core symptoms of PTSD, CPTSD involves persistent difficulties with emotional regulation, a negative sense of self, and relationships.

Not everyone who experiences complex trauma develops PTSD or CPTSD.

People respond to traumatic experiences in different ways, and having some trauma-related symptoms does not automatically mean that you have a particular diagnosis.

Common Signs of Complex Trauma

The effects of complex trauma may not always be easy to recognize.

Sometimes the ways you learned to cope became so familiar that they feel like part of your personality rather than responses that developed in difficult circumstances.

You may notice experiences such as:

Feeling chronically anxious, watchful, or unsafe
Becoming overwhelmed by emotions or having difficulty settling after something upsetting
Feeling emotionally numb, shut down, or disconnected
Persistent shame, guilt, worthlessness, or self-criticism
Difficulty trusting others or feeling emotionally close to people
Difficulty recognizing or maintaining boundaries
Avoiding people, situations, thoughts, or feelings that bring up painful memories
Distressing memories, nightmares, or flashbacks
Feeling disconnected from yourself, your body, or your surroundings
Becoming highly aware of other people's moods or reactions
Feeling responsible for keeping relationships safe or preventing conflict
Struggling to understand what you need or want

You may recognize some of these experiences and not others.

Everyone's response to trauma is different.

When Survival Responses Begin to Feel Like "Who You Are"

One of the difficult things about complex trauma is that protective responses can become deeply familiar.

You may have learned to stay quiet.

To keep other people happy.

To disconnect from difficult feelings.

To remain constantly alert.

To take care of everyone else.

To expect rejection.

To become very independent because relying on other people did not feel safe.

At one point, these responses may have helped you manage circumstances that felt overwhelming, unpredictable, or unsafe.

Later in life, the same responses may continue even when the original danger is no longer present.

Rather than asking, "What is wrong with me?" therapy can create space for a different question:

"What happened that made this response necessary?"

That shift can open the door to greater curiosity and compassion toward yourself.

How Therapy Can Support Healing From Complex Trauma

Healing from complex trauma is not about erasing the past or changing who you are.

Therapy can give you space to understand how you learned to survive difficult experiences and how those patterns may still affect you today.

At Inner Core Psychotherapy, we approach trauma with compassion and curiosity.

Rather than viewing trauma responses as signs that something is wrong with you, we can begin to understand how many of these responses developed as ways of protecting you when circumstances felt overwhelming or unsafe.

This perspective is central to the trauma-informed work of Janina Fisher, who describes many difficult symptoms and behaviours as adaptations to traumatic experiences rather than signs of personal defectiveness.

Learn more about Trauma-Informed Stabilization Treatment (TIST) from trauma expert Janina Fisher.

Creating Safety in the Therapeutic Relationship

For people who have experienced relational trauma, trusting another person may not come easily.

If important relationships in your life were also places where you felt unsafe, criticized, rejected, controlled, or unseen, becoming vulnerable with another person can understandably feel complicated.

Therapy therefore begins with the relationship itself.

You should feel respected, heard, and able to move at a pace that feels manageable.

You do not necessarily have to begin by telling every detail of what happened to you.

For some people, trauma therapy initially involves developing a greater sense of stability, awareness, and safety before directly exploring traumatic memories.

Janina Fisher's TIST model, for example, emphasizes stabilization, mindfulness, safety, and understanding trauma-related responses before and alongside deeper trauma processing.

Research and clinical work associated with Bessel van der Kolk have also contributed to broader recognition that traumatic stress can involve physiological and sensory responses, not only thoughts and memories.

This is one reason many contemporary trauma approaches pay attention to both psychological experience and what happens in the body.

Therapy can offer a place to begin noticing these responses with curiosity rather than judgment.

Trauma Can Be Felt in the Body

Sometimes you may understand intellectually that you are safe while your body seems to be telling you something very different.

Your heart may race.

Your muscles may tense.

You may freeze or feel unable to respond.

You may feel restless, numb, disconnected, or overwhelmed without immediately knowing why.

A present-day situation can sometimes activate a response that seems much bigger than what is happening in the moment.

This does not necessarily mean you are overreacting.

It may reflect a nervous system that learned to respond quickly when danger, conflict, or unpredictability was present.

Therapy can create space to notice these responses and gradually build greater awareness, choice, and safety in the present.

Tailored, Trauma-Informed Approaches

There is no single therapy that is right for every person who has experienced complex trauma.

Therapy should reflect your experiences, needs, readiness, preferences, and goals.

At Inner Core Psychotherapy, approaches that may be incorporated into therapy include:

Internal Family Systems (IFS): Can help you become curious about different parts of yourself, including parts that carry painful emotions or have developed protective ways of responding.
Trauma-Informed Stabilization Treatment (TIST): A parts-based trauma approach developed by Janina Fisher that emphasizes stabilization, mindfulness, self-compassion, and understanding trauma responses as protective adaptations.
Cognitive approaches: Can create space to explore thoughts, beliefs, and patterns that may contribute to distress and consider different ways of relating to them.
Somatic Experiencing (SE): Brings gentle attention to physical sensations, emotions, and nervous-system responses while supporting greater awareness and a sense of safety in the body.

Therapy is collaborative.

The goal is not to fit you into a particular approach or decide what healing should look like for you.

It is to understand what you need and work together in a way that feels safe, respectful, and meaningful.

Listening to the Parts of You That Learned to Survive

Complex trauma can sometimes leave you feeling as though different parts of you want very different things.

One part may long for closeness.

Another may fear trusting anyone.

One part may want to rest.

Another may believe you always need to stay alert or productive.

One part may know that a relationship is safe.

Another may still be waiting for something to go wrong.

Rather than trying to get rid of these reactions, therapy can create space to become curious about them.

What is this part afraid might happen?
What has it been trying to protect me from?
When did I first need this response?
What does this part need from me now?

Sometimes healing begins with recognizing that even the responses that cause difficulty today may once have been trying to keep you safe.

Reconnecting With Yourself

Complex trauma can affect more than memories of what happened.

It can influence how you see yourself.

You may have learned to believe your needs were too much, your emotions were a problem, you had to earn care, or staying connected to other people meant disconnecting from yourself.

Therapy can give you space to explore those beliefs instead of accepting them as truth.

Over time, you may begin to reconnect with parts of yourself that had very little room before.

Your preferences.

Your limits.

Your emotions.

Your body.

Your relationships.

Your sense of what matters to you.

And perhaps a quieter part of yourself that has been there all along.

Your wise self.

Healing Is Not a Straight Line

Healing from complex trauma does not mean forgetting what happened.

It also doesn't mean difficult feelings, memories, or reactions will never appear again.

Instead, healing may involve having more awareness of what is happening inside you and more choice in how you respond.

Over time, you may begin to:

Feel more grounded and present in your body
Recognize triggers with greater awareness
Understand your emotional responses more clearly
Develop greater compassion toward yourself
Strengthen boundaries and relationships
Feel safer experiencing closeness with other people
Recognize when old protective patterns are appearing
Experience a greater sense of choice and agency
Make more room for rest, connection, meaning, and enjoyment

Some periods of change may feel noticeable.

At other times, progress may feel much quieter.

You may recognize a reaction sooner than you once did.

You may recover from something more quickly.

You may say no when you would have said yes. before

You may offer yourself compassion where there used to be criticism.

These changes matter too.

You Don't Have to Carry It Alone

Living with the effects of complex trauma can be exhausting.

You may have spent years managing difficult emotions, staying in control, avoiding triggers, caring for other people, anticipating what might go wrong, or simply trying to get through the day without fully understanding why life sometimes feels so difficult.

Those responses may have helped you survive experiences that once felt overwhelming.

They deserve curiosity, not judgment.

At Inner Core Psychotherapy, we offer compassionate, trauma-informed psychotherapy in Ottawa and online across Ontario. Therapy can give you space to explore how past experiences may still affect you today and to reconnect with yourself, your relationships, your body, and what matters most to you.

You don't have to force yourself to heal on someone else's timeline.

You do not have to tell your story before you feel ready.

And you don't have to become a different person to move toward something different.

Healing can include understanding the parts of you that learned to survive, reconnecting with the parts of you that became harder to hear, and gradually making more room for safety, connection, and a life that feels more fully your own.