PTSD in the Body: How Trauma Affects Your Nervous System and Physical Health – Symptoms, Causes, and Healing

PTSD as a Nervous System Disorder: What No One Told Me

I never thought of PTSD as a nervous system disorder — until one day in therapy, my psychologist gently said:
“Sarah, you’ve got a nervous system disorder. PTSD lives in your body, not just your mind.”

That sentence landed like a truth I had always known but didn’t have the words for. Suddenly, it all made sense — the chronic tension, the health flare-ups, the feeling that I was constantly bracing for impact.

“Your nervous system isn’t overreacting. It’s responding to a lifetime of experience.”
– Inspired by somatic therapy principles

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When Trauma Lives in Your Body: My Wake-Up Call

A few years ago, a fuel tanker ran into the back of my car. The impact caused a disc bulge in my lower back and neck. I did everything I could — physio, Pilates, cortisone injections. I was disciplined with my rehab. The pain became chronic, but manageable.

But recently, I had a terrifying flare-up.

I woke up in excruciating pain — vomiting, shaking, unable to move my neck. I hadn’t done anything strenuous. It was a rest day. Nothing happened in my sleep. I hoped it would pass. It didn’t.

At the hospital, I was dizzy and had dangerously low blood pressure. My nervous system was shutting down.

The MRI showed a second disc bulge, likely caused by instability from the first. But here’s what I’m realising now: the physical injury wasn’t the whole story.

My nervous system was overwhelmed.

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🧠 Science Break: It’s Not You — It’s Your Nervous System

If you’ve ever felt like your body is betraying you — like you’re too emotional, too tired, too reactive — you’re not crazy. You’re not weak.

You’re dysregulated.
And science backs that up.

🔬 Here’s what we know:

• PTSD rewires the brain. It overstimulates your amygdala (fear center), shrinks your hippocampus (memory), and dulls your prefrontal cortex (logic and regulation).
• Your autonomic nervous system — the one that controls heart rate, digestion, stress — gets thrown off. You can swing between hyperarousal (panic, anger, insomnia) and hypoarousal (fatigue, numbness, low BP).
• Dr. Bessel van der Kolk, author of The Body Keeps the Score, explains that trauma is stored not just in memory, but in the body’s cells and systems.
• Symptoms like inflammation, gut issues, dizziness, chronic pain, and even autoimmune disorders are increasingly linked to long-term nervous system dysregulation.

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🔔 Analogy: Your Nervous System Is a Smoke Alarm That Won’t Turn Off

Think of your nervous system like a home smoke alarm.
In a safe, functioning system, it only goes off when there’s fire.

But with PTSD? The wires are fried. The alarm goes off for burnt toast… or nothing at all.

That’s why you might feel unsafe even when you’re “fine.” That’s why your body shakes, your stomach flips, or your blood pressure drops out of nowhere.
It’s not you. It’s your system trying to protect you.

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The Physical Cost of Unprocessed Trauma

I’ve been burning out slowly since I joined the Police.
I’ve survived a car crash, witnessed trauma on the job, and endured emotional damage in my personal life. And while I’ve kept going — training, eating well, being disciplined — I now see:

👉 My body has been in survival mode for years.
👉 My chronic pain wasn’t just structural — it was emotional residue.
👉 My immune issues, sleep problems, and inflammation were red flags.

My nervous system had enough. It hit the wall — and took me down with it.

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Healing Is Holistic (and Not Linear)

I’ve done the talk therapy. It’s helped.
But it wasn’t enough.

What’s actually helped me feel human again are the somatic practices:

• Breathwork
• Sound healing
• Ecstatic dance
• Trauma-informed massage
• Vagus nerve regulation
• Journaling & grounding rituals
• Real, ceremonial cacao (not the sweet stuff — the bitter kind that cracks your heart open)

When I stopped doing those, I felt it. And my body really felt it.

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💬 This Isn’t Mine to Carry Anymore — And Maybe It’s Not Yours Either

Some of the pain I’ve been carrying isn’t even mine — it’s energy and trauma from the job, from my ex, from the world around me. And I finally realise:
I don’t have to keep carrying it.

This is my commitment to myself — and maybe yours too:

• Prioritise nervous system care.
• Make somatic healing a regular part of life.
• Let go of other people’s pain.
• Ask for support.
• Stop trying to “act fine” when your body is screaming for help.

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Looking for Support Between the Sunshine Coast and Gold Coast?

I’m seeking genuine, trauma-informed practitioners who don’t just wear the healer title — they embody it. If you know someone with integrity, empathy, and a real intuitive gift, please reach out. I’d love to try more modalities and share what I learn.

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🔁 Let’s Heal Together

There’s always grief in becoming a different version of yourself — especially when that change was forced by trauma. But there’s also strength.

If you’re on this journey too, I see you.
Stay tuned — I’ll keep sharing what works, what doesn’t, and the reality of walking through trauma with your body as your guide.

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Affirmations for Nervous System Healing:

• I am learning to feel safe in my body again.
• My body is not broken. It is wise, and it is trying to protect me.
• I give myself permission to rest, regulate, and release.
• It’s safe for me to slow down.
• I am allowed to let go of pain that isn’t mine.
• Healing is not linear, and I honour every step I take.
• I am not behind. I am arriving in my own time.