Intense Grief or PTSD?

At Authentic Living London, many people come to therapy feeling overwhelmed, confused, and unsure how to make sense of what they are experiencing. You might find yourself wondering, Is this grief? Is this trauma? Why does it feel so intense?

These are important questions, and the answer is not always straightforward.

Grief and post-traumatic stress disorder (PTSD) can look similar, particularly after a sudden or traumatic loss. Both can affect your emotions, thoughts, body, relationships, sleep, and sense of connection to the world around you. Both can leave you feeling consumed by an experience that is difficult to explain to other people.

But grief and PTSD are not the same thing.

Understanding the difference can help you make sense of your experience and, when necessary, find support that addresses what you are actually going through.

Grief Is a Response to Loss

Grief is a natural human response to losing someone or something that matters deeply to us. Most often, we think about grief in relation to death, but significant losses can take many forms. People can grieve the end of a relationship, changes in their health or abilities, a significant shift in identity, or a future they had expected to have.

After a death, grief may involve intense sadness, yearning, disbelief, loneliness, difficulty concentrating, changes in sleep, or periods when everyday life feels unfamiliar. You may find yourself thinking about the person repeatedly or feeling waves of emotion that seem to arrive without warning.

These reactions can be painful without being pathological. Most people experience a period of intense acute grief following the death of someone they love, and for most people, those reactions gradually change as they adapt to life after the loss (Szuhany et al., 2021).

Grief is not something that needs to be eliminated. Over time, the goal is generally not to stop loving or missing the person who died, but to find ways of integrating the loss while continuing to engage with life.

PTSD Is Different

PTSD develops following exposure to a traumatic event involving actual or threatened death, serious injury, or sexual violence. Examples can include experiencing or witnessing violence, serious accidents, abuse, certain forms of medical trauma, or other events that meet the criteria for a traumatic exposure.

The defining feature is not simply that something was extremely upsetting. PTSD involves a particular cluster of responses that can develop after trauma, including intrusive memories or nightmares, avoidance of reminders, changes in mood and thinking, and persistent physiological arousal or a heightened sense of threat.

Someone with PTSD may know intellectually that an event happened in the past while their body continues to respond as though danger is present.

A loud noise, smell, location, image, conversation, or other reminder may trigger an intense reaction. They may feel constantly on guard, have difficulty sleeping, become easily startled, or actively avoid situations that remind them of what happened.

The experience can be profoundly physical as well as emotional.

When Grief and Trauma Happen Together

The distinction becomes more complicated when someone dies in circumstances that are themselves traumatic.

A sudden death, suicide, homicide, fatal accident, or other violent or distressing loss can expose a person to both profound attachment loss and trauma. In these situations, grief and PTSD can occur at the same time.

You might desperately miss the person while also being haunted by images of how they died. You might want to talk about them but find yourself avoiding anything associated with the circumstances of their death. Memories of their life may bring comfort, while memories of the death itself trigger fear, panic, or overwhelming distress.

Research involving people who experienced traumatic bereavement has found that prolonged grief disorder and PTSD are closely related but distinguishable experiences. This means that someone can experience significant symptoms of both without those symptoms being interchangeable (Lenferink et al., 2021).

A 2024 systematic review similarly found that traumatic loss can be associated with both PTSD and pathological grief, while identifying different factors associated with each condition (Kustner et al., 2024).

In other words, you don't necessarily have to choose between the two.

Sometimes there is grief, sometimes there is trauma, and sometimes there is both.

	Grief	PTSD
What can cause it?	Usually follows a significant loss, such as the death of someone you love, but can also follow other major losses.	Develops after exposure to a traumatic event involving actual or threatened death, serious injury, or sexual violence.
Core experience	The experience tends to centre on the loss, separation, yearning, and adapting to life after what has changed.	The experience centres more strongly on trauma, threat, danger, and the sense that the traumatic event may still be happening or could happen again.
Emotions	Sadness, yearning, loneliness, anger, guilt, numbness, and moments of relief or even joy can all occur.	Fear, anxiety, anger, guilt, emotional numbness, shame, and a persistent sense of threat are common.
Memories	Memories of the person or what was lost can be painful but may also bring comfort, love, and meaning.	Memories of the traumatic event may be intrusive and can feel as though the event is happening again.
Sense of safety	The world may feel empty, painful, or unfamiliar, while still generally feeling safe.	The world may feel dangerous or unpredictable, even when the person is objectively safe.
Avoidance	Someone may temporarily avoid places, activities, or reminders because they are painful.	Persistent avoidance of trauma-related thoughts, feelings, people, places, or situations is a core PTSD symptom.
Body and nervous system	Physical symptoms such as fatigue, sleep disruption, changes in appetite, and emotional waves are common.	Hyperarousal can include being constantly on guard, feeling easily startled, irritability, sleep difficulties, and difficulty relaxing.
Pattern over time	Grief often changes over time, with periods of intense sadness alongside moments of connection, functioning, or pleasure.	Symptoms can persist and interfere significantly with daily life, relationships, and functioning.
Can they occur together?	Yes. Grief can coexist with PTSD, particularly following a traumatic death.	Yes. PTSD can occur alongside grief or prolonged grief disorder after a traumatic loss.
Therapeutic focus	Processing the loss, adapting to life after the loss, maintaining meaningful connections, and integrating the loss into one's life.	Addressing trauma-related symptoms, reducing avoidance and reactivity, processing traumatic memories, and rebuilding a sense of safety.

What Is the Pain About?

One useful way of understanding the difference is to consider what the distress tends to revolve around.

With grief, the emotional centre is often the loss and the relationship that has been changed by it. You may find yourself longing for the person, thinking about what you have lost, missing the life you shared, or struggling to imagine your future without them.

With PTSD, the distress is more strongly organized around threat and the traumatic experience. The mind and body may remain focused on what happened, whether you are safe now, and whether something similar could happen again.

These experiences can overlap, especially after a traumatic death. Research comparing prolonged grief and PTSD has found differences in the types of thoughts, memories, and coping responses associated with the two conditions (Smith & Ehlers, 2021).

This is one reason that a careful assessment matters. Simply asking whether someone is “still grieving” does not tell us enough about what they are experiencing.

Memories Can Feel Different

Memories are another area where grief and trauma can become confusing.

In grief, remembering someone can be painful while also bringing warmth, connection, love, or meaning. You might look at an old photograph and cry because you miss them, but the memory may still feel like a memory. It belongs to the past, even when the emotions surrounding it are powerful.

Traumatic memories can behave differently.

A person with PTSD may experience intrusive memories, nightmares, or other reactions that make the past feel frighteningly present. Rather than simply remembering what happened, they may feel as though they are reliving aspects of the traumatic event.

Following traumatic loss, both types of memories can exist together. You might have comforting memories of your loved one's laugh or the way they held your hand, while also experiencing intrusive images connected to their death. That combination can be particularly distressing.

Your Sense of Safety Can Change

Grief can make the world feel empty, unfamiliar, or profoundly sad. After losing someone you love, ordinary places and routines may suddenly remind you of their absence.

PTSD can change your sense of safety in a different way.

You may begin to see danger everywhere. Your attention can become focused on potential threats, and your body may remain prepared to respond even when you are objectively safe.

This heightened alertness, known as hyperarousal or hypervigilance, is an important feature of PTSD. It can contribute to irritability, sleep difficulties, concentration problems, and an exaggerated startle response.

In grief, there may be moments when the pain recedes and you reconnect with other people or activities. PTSD symptoms can also fluctuate, but persistent threat-related responses and avoidance are particularly important when considering whether PTSD may be present.

Avoidance Can Look Different Too

It is completely understandable to avoid certain reminders after a loss.

You might not want to visit a particular restaurant because it was your favourite place together. You might avoid a song because hearing it makes you cry. You may need some time before looking through photographs.

Avoidance can also occur with PTSD, but the function of that avoidance tends to be different. Someone may avoid a road because the accident happened there, avoid driving altogether because it feels dangerous, or avoid news reports because they trigger intense fear and a sense of threat.

Research suggests that avoidance, intrusive experiences, and emotional responses can occur in both grief-related difficulties and PTSD, which is another reason the two experiences cannot always be distinguished by looking at a single symptom (Szuhany et al., 2021; Smith & Ehlers, 2021).

The broader pattern matters.

What About Prolonged Grief?

There is another important piece of this conversation: prolonged grief disorder.

Most grief does not become prolonged grief disorder. Intense emotions shortly after a death are not, by themselves, evidence of a mental disorder. Acute grief can be incredibly painful and still fall within the range of normal human responses to loss (Szuhany et al., 2021).

Prolonged grief disorder refers to a persistent and impairing grief response in which symptoms such as intense yearning, preoccupation with the deceased, difficulty accepting the death, identity disruption, loneliness, or a loss of meaning remain at a clinically significant level over time.

Prolonged grief disorder and PTSD can occur together, but research indicates that they are distinct conditions with different core features (Lenferink et al., 2021).

This distinction is important because it means that someone struggling after a loss should not automatically assume that they have PTSD simply because they are experiencing intense emotions, intrusive thoughts, sleep problems, or avoidance.

Grief can be intense.

Intensity alone does not determine whether something is a disorder.

What Does This Mean for Therapy?

The kind of support that is helpful depends on what you are experiencing.

Grief-focused therapy may provide space to process the loss, explore the relationship with the person who died, make sense of changes in identity and daily life, and find ways to remain connected to what matters while adapting to a different future.

When PTSD is present, treatment may also need to address trauma-related symptoms such as intrusive memories, avoidance, hyperarousal, and persistent feelings of threat.

When grief and PTSD occur together, both may need attention.

The goal is not to decide which experience is “more important.” It is to understand what is happening well enough to provide appropriate care. Research following traumatic bereavement has found that prolonged grief and PTSD can have different cognitive and behavioural characteristics, while also occurring together in some people (Smith & Ehlers, 2021).

You Don't Have to Figure It Out Alone

If you are struggling after a loss, you do not need to diagnose yourself before asking for help. Perhaps you are grieving someone you deeply miss. Perhaps the circumstances of the death continue to haunt you. Perhaps you are experiencing both, and you aren't sure where grief ends and trauma begins. Those questions are worth exploring with a qualified professional.

At Authentic Living London, we approach grief and trauma with curiosity, compassion, and respect. We understand that your experience cannot always be neatly placed into one category, and we take the time to understand the whole picture.

Therapy is not about deciding that your feelings are too much or trying to make you move on before you are ready. It is about creating a safe space to understand what you are experiencing and finding ways forward that respect both your loss and your wellbeing. If you are feeling overwhelmed, stuck, or uncertain about what is happening, you do not have to sort it out on your own.

Authentic Living London offers compassionate grief counselling and trauma support in London, Ontario, both in person and online. Contact us at 226-224-0301 or info@authenticlivinglondon.com to schedule a consultation.

This article is intended for educational purposes only and is not a substitute for individualized psychological or medical care. Only a qualified professional can determine whether someone meets criteria for PTSD, prolonged grief disorder, or another mental health condition. If you are experiencing thoughts of self-harm or feel unable to stay safe, seek immediate professional or emergency support.

References

Kustner, T., Böck, C., & Rosner, R. (2024). Traumatic loss: A systematic review of potential risk factors differentiating between posttraumatic stress disorder and prolonged grief disorder. European Journal of Psychotraumatology, 15(1), 2371762. https://doi.org/10.1080/20008066.2024.2371762

Lenferink, L. I. M., van den Munckhof, M. J. A., de Keijser, J., & Boelen, P. A. (2021). DSM-5-TR prolonged grief disorder and DSM-5 posttraumatic stress disorder are related, yet distinct: Confirmatory factor analyses in traumatically bereaved people. European Journal of Psychotraumatology, 12(1), 2000131. https://doi.org/10.1080/20008198.2021.2000131

Smith, K. V., & Ehlers, A. (2021). Prolonged grief and posttraumatic stress disorder following the loss of a significant other: An investigation of cognitive and behavioural differences. PLOS ONE, 16(4), e0248852. https://doi.org/10.1371/journal.pone.0248852

Szuhany, K. L., Malgaroli, M., Miron, C. D., & Simon, N. M. (2021). Prolonged grief disorder: Course, diagnosis, assessment, and treatment. FOCUS, 19(2), 161–172. https://doi.org/10.1176/appi.focus.20200052

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