A Somatic Guide to Understanding PTSD, CPTSD, and Nervous System Healing
“Small t trauma” and “Big T trauma” explained through a somatic lens.
When people hear the word “trauma,” they often think of something dramatic or catastrophic. And while those experiences are absolutely part of the picture, a somatic lens invites us to look a little deeper.
From a body-based perspective, shaped by the work of Peter Levine, author of Waking the Tiger: Healing Trauma, trauma isn’t defined only by the event itself. It’s defined by what happens inside the nervous system when an experience feels overwhelming and we don’t have the support, time, or capacity to fully process it.
This understanding is also reflected in the work of organizations like Somatic Experiencing International, which emphasize that trauma is less about the story of what happened and more about how the body holds and responds to those experiences.
This is where the language of “big T trauma” and “small t trauma” can be helpful, not as a way to rank experiences, but as a way to understand how different kinds of overwhelm can live in the body.
Understanding Big T Trauma and Small t Trauma
“Big T trauma” refers to events that involve a clear threat to safety or survival, things like accidents, assaults, medical emergencies, or natural disasters. In these moments, the nervous system mobilizes a powerful survival response: fight, flight, or freeze. Ideally, once the danger has passed, the body completes that response and returns to a settled state. But sometimes, that survival energy gets interrupted or stuck. When that happens, the body can continue to respond as if the threat is still present, even long after the event is over.
“Small t trauma,” from a somatic experiencing perspective, often relates to more subtle but repeated disruptions in safety, especially in relationships. This can include experiences associated with childhood emotional neglect, such as not feeling seen, heard, or emotionally supported. These might include experiences like not feeling seen or heard as a child, being shamed or criticized, walking on eggshells around a caregiver, or feeling emotionally alone-inconsistent caregiving. These moments may not overwhelm the system all at once, but over time they create a kind of chronic activation or shutdown in the nervous system. The body learns, often quietly, that it isn’t safe to fully express, relax, or connect.
In both cases, the key question isn’t “Was this event objectively traumatic?” but rather, “What happened inside your nervous system?” Did your body have the chance to complete its natural responses, or did it have to suppress, override, or disconnect in order to cope?
PTSD and CPTSD Through a Somatic Lens
This understanding helps make sense of conditions like PTSD (Post-Traumatic Stress Disorder), CPTSD (Complex Post-Traumatic Stress Disorder), and the effects of generational trauma and nervous system trauma. PTSD is well defined by organizations such as the National Institute of Mental Health as a condition that can develop after experiencing or witnessing a life-threatening event. People might experience flashbacks, nightmares, or a constant sense of vigilance. From a somatic perspective, this can look like a body that is still bracing, still preparing, still scanning for danger.
CPTSD, which is formally recognized in the diagnostic framework of the World Health Organization (ICD-11), tends to emerge from ongoing or repeated experiences of overwhelm, often small t trauma, though it can include repeated big T events as well. Because the stress is chronic, the nervous system doesn’t just get stuck in high alert; it may also cycle into shutdown. People might feel numb, disconnected, or collapsed, alongside moments of anxiety or emotional intensity. There can be a deep sense of shame, difficulty with boundaries, and a feeling of not quite being anchored in oneself.
How Trauma Shows Up in the Nervous System
For example, someone who experienced a car accident may notice their body tightening, heart racing, or breath becoming shallow when they approach a similar situation again. Another person who grew up feeling criticized might notice a subtle contraction in their chest or throat when they try to speak up, along with an urge to stay quiet or appease. These are not conscious choices; they are nervous system patterns shaped by past experience.
One of the core ideas in somatic experiencing is that these responses are not problems to be fixed, but incomplete survival responses that are waiting to be gently resolved. The body is not working against you; it is trying to protect you in the best way it knows how.
Trauma symptoms, then, are less about the story and more about the state of the nervous system. They can show up as anxiety, chronic tension, digestive issues, sleep disturbances, emotional overwhelm, or a sense of disconnection. Some people live in a near-constant state of activation, restless, on edge, unable to fully relax. Others spend more time in shutdown, feeling flat, tired, or removed from their emotions. Many people move between the two without fully understanding why.
What’s important to recognize is that both big T and small t trauma can shape these patterns in profound ways. There is no hierarchy in how the body holds experience. Repeated moments of not feeling safe, seen, or supported can be just as impactful as a single major event, especially when they occur during formative years.
Nervous System Healing and Recovery
Healing, from a somatic experiencing and trauma-informed therapy perspective, isn’t about reliving or analyzing everything that happened. It’s about helping the nervous system slowly rediscover a sense of safety. This often happens through building awareness of bodily sensations, gently tracking activation and settling, and allowing small amounts of survival energy to complete in a titrated, manageable way.
Over time, this can lead to more flexibility in the nervous system. The body begins to come out of constant defense. There may be more room to pause, to feel, to respond rather than react. Patterns like chronic anxiety, shutdown, or self-criticism can begin to soften, not because they were forced away, but because the system no longer needs them in the same way.
From Survival to Understanding
If you see yourself in these descriptions, it likely means your nervous system adapted intelligently to experiences that felt too much, too fast, or too alone. Through a somatic lens, those adaptations are not signs of dysfunction, they are signs of survival.
Understanding small t and big T trauma in this way can shift the conversation from “What’s wrong with me?” to “What happened in my system, and how can I support it now?” And that shift, toward curiosity and compassion, is often where meaningful healing begins.
If this article resonated with you, support is available. Reach out to View Point Counselling to book a free consultation and explore whether working together feels like the right fit.