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17 PTSD Symptoms You Should Know

In a Nutshell: PTSD doesn’t always look how you expect it to. From nightmares and flashbacks to numbness, irritability, or physical discomfort, symptoms can vary widely — and often go unrecognised. This article breaks down 17 key signs of PTSD and gently guides you toward knowing when to seek help.

In this article, we’re going to talk about:

Understanding PTSD

Post-Traumatic Stress Disorder (PTSD) can affect anyone who has experienced a traumatic event — whether it’s something sudden like a car accident, or something ongoing like abuse or exposure to violence. PTSD symptoms don’t always appear straight away, and they can affect people in different ways. Sometimes, it’s the quieter, less obvious signs that go unnoticed the longest.

Understanding the full range of PTSD symptoms is the first step towards getting support — for yourself or someone you care about.

17 Symptoms of PTSD

  1. Intrusive Thoughts – Unwanted, distressing memories or flashbacks of the trauma that come out of nowhere and are hard to switch off.

  2. Nightmares – Recurrent, unsettling dreams that relate to the traumatic event, often disrupting sleep and leaving you feeling on edge the next day.

  3. Avoidance – Going out of your way to avoid places, people, conversations, or even thoughts that remind you of the trauma.

  4. Emotional Numbness – Feeling emotionally flat or disconnected, especially from people you care about or things you used to enjoy.

  5. Negative Self-Perception – Harsh inner criticism, guilt, or shame — especially when you blame yourself for what happened.

  6. Hopelessness – Feeling like things will never improve, or that you’ll never “feel normal” again.

Feeling stuck or overwhelmed by these symptoms? You don’t have to go through it alone. Click here to reach out and book a confidential appointment.

  1. Difficulty Remembering the Trauma – Gaps in memory, especially about key parts of the traumatic event.

  2. Increased Irritability or Anger – Finding yourself on a short fuse, sometimes over small things, or having unexpected emotional outbursts.

  3. Hypervigilance – Always being on alert or feeling like something bad might happen, even when you’re in a safe environment.

  4. Exaggerated Startle Response – Jumping or panicking at loud noises, unexpected movements, or even sudden changes in tone.

  5. Difficulty Concentrating – Struggling to focus, stay organised, or keep up with tasks at work or home.

  6. Insomnia – Trouble falling asleep, staying asleep, or waking up too early and feeling exhausted.

Sleep struggles, irritability, trouble concentrating — these aren’t just signs of being “burnt out.” If they’ve been hanging around for a while, they might be connected to trauma. Let’s talk about it.

  1. Physical Symptoms – Headaches, stomach problems, or chronic pain that don’t have a clear medical explanation.

  2. Loss of Interest in Activities – No longer feeling drawn to hobbies, social outings, or things that used to make you feel good.

  3. Self-Destructive Behaviour – Engaging in risky behaviours like substance use, reckless driving, or other habits that feel out of character.

  4. Emotional Outbursts – Feeling like your emotions are just under the surface and could spill out any moment — whether it’s crying, yelling, or panic.

  5. Feelings of Detachment from Reality – Experiencing a sense of unreality or feeling like you’re observing yourself from the outside (sometimes called dissociation).

Do these symptoms feel familiar — even just a few of them? PTSD looks different for everyone, and recognising the signs is a strong first step. Book a session with one of our experienced psychologists in Sydney or via Telehealth across Australia.

Seeking Help for PTSD

Recognising these symptoms in yourself or someone close to you can be confronting, but the good news is that PTSD is highly treatable. Therapies like Cognitive Behavioural Therapy (CBT) and Trauma-Focused CBT are proven to reduce symptoms and improve overall wellbeing.

At MindBox Psychology, our team of fully registered psychologists offer a safe, compassionate space to work through trauma — at your own pace. We can help you build resilience, process what happened, and feel more in control again.

Ready to take the next step? We offer both in-person and Telehealth appointments to support you wherever you are. Click here to book an appointment or learn more about our approach on the Adult Psychology page.

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Picture of Written by Dr Elizabeth Woodcock

Written by Dr Elizabeth Woodcock

Clinical Psychologist, Director of MindBox Psychology

Our Psychologists are highly qualified, with Masters or Doctorate degrees in Clinical Psychology. We use evidence-based approaches, including Cognitive Behaviour Therapy (CBT), Mindfulness, and Dialectical Behaviour Therapy (DBT), to tailor treatment to meet each individual’s unique needs.

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