Why Can’t I Stop Thinking About a Past Event? Do I have Rumination Anxiety?

Can’t stop thinking about a past event? Learn why your brain replays painful memories and how EMDR, IFS, and somatic therapy help in Colorado.

While “letting it go” works great for expired milk or that random charging cord that doesn’t fit anything anymore… it’s not so easy for painful memories, anxiety, or experiences that still feel emotionally charged.

Has anyone ever told you:

• “Just get over it”
• “You need to move on”
• “Why are you still thinking about that?”

If so, you’re not alone.

And if you’ve ever thought:

“Why can’t I stop thinking about a past event?”

There’s nothing wrong with you.

Your brain isn’t being dramatic.

Your nervous system is trying to protect you.

Why Your Brain Keeps Replaying Painful Memories

Many people assume that if they’re still thinking about something months—or even years—later, it means they’re weak, stuck, or overreacting.

But that’s not how the nervous system works.

Your brain is designed to keep track of experiences that felt:

• Unsafe
• Embarrassing
• Overwhelming
• Painful
• Emotionally intense

Because from a survival perspective, your brain wants to prevent that experience from happening again.

So instead of filing the memory away as “past history,” your nervous system may keep it on active alert.

This can look like:

• Rumination
• Intrusive thoughts
• Anxiety
• Replaying conversations
• Rehearsing future scenarios
• Feeling emotionally activated by old memories

You Can’t “Positive Think” Your Way Out of a Survival Response

This is where people often get frustrated.

You may logically know:

• “It’s over now”
• “That happened years ago”
• “I should be past this”
• “I should be grateful that…”

But your body may not feel that way.

That’s because healing isn’t just cognitive.

Painful experiences can become stored in:

• Your nervous system
• Emotional memory networks
• Protective parts of yourself
• Your body’s survival responses

This is why simply telling yourself to “let it go” often doesn’t work.

A Nervous System Perspective: Why You Feel Stuck

Think of it like a check engine light.

Ignoring the light or putting tape over it doesn’t fix the engine.

Similarly:

• Distracting yourself
• Overthinking
• Positive thinking
• Avoiding the memory

…may temporarily reduce discomfort, but they don’t actually help your nervous system process what happened.

Your system needs more than logic.

It needs experiences of safety and processing.

Signs Your Nervous System May Still Be Holding Onto the Past

You may notice:

• Replaying conversations repeatedly
• Feeling embarrassed about something years later
• Anxiety when reminded of a past event
• Trouble sleeping because your mind won’t stop looping
• Feeling emotionally activated by memories others seem to forget easily
• Intrusive thoughts about mistakes, trauma, or relationships

This is especially common after:

• Trauma
• Betrayal
• Emotional abuse
• Sudden loss
• Bullying or humiliation
• Medical scares
• Relationship conflict
• High-stress experiences

Why Rumination Happens

Rumination is often your brain trying to:

• Prevent future pain
• Solve an unresolved problem
• Regain a sense of control
• Protect you from being hurt again
• And ironically, prevent you from pain even though the rumination is sooo painful.

From an Internal Family Systems (IFS) perspective, there may be protective parts of you that believe:

“If I keep thinking about this, maybe it won’t happen again.”

These parts are not trying to sabotage you.

They’re trying to help. I swear!

How EMDR, IFS, and Somatic Therapy Help You “Let It Go”

At Colorado Wildflower Counseling, I use EMDR, Internal Family Systems (IFS), and somatic therapy to help people process painful experiences and shift out of survival states.

Healing doesn’t happen through forcing yourself to stop thinking about something.

It happens through helping your system update.

EMDR Therapy: Helping the Brain Reprocess Painful Memories

EMDR (Eye Movement Desensitization and Reprocessing) helps the brain process memories that still feel emotionally charged in the present.

When something overwhelming happens, your brain may not fully process it.

Instead, it can remain “stuck” in a highly activated, full body yuck feelings,  form.

EMDR helps:

• Reduce emotional intensity
• Shift memories into the past (Truly! Functional MRI’s show that the memory lights up in a different spot after EMDR processing, it’s so cool!)
• Decrease intrusive thoughts and triggers
• Help the nervous system recognize that the danger is over

Many people notice they can finally think about a past event without feeling emotionally and physiologically run over by it.

See more on my blog here: Heal Trauma and patterns with EMDR Therapy Colorado

IFS Therapy: Understanding the Parts That Won’t Let Go

In Internal Family Systems (IFS), we understand that different parts of you hold different roles.

For example:

• One part may replay memories to try to protect you
• Another part may feel ashamed or afraid
• Another part may desperately want relief

Instead of fighting these parts or trying to “get rid” of them, therapy helps you:

• Understand their protective role
• Build compassion toward them
• Help them feel safer in the present
• These parts might transition to a different role – my favorite is when they decide to kick back and go on vacation to an island with a hammock and umbrella beverage. This really does happen!

As these parts relax, the mental looping often decreases.

Read a little bit more about how IFS can help at one of my blogs here:

IFS Therapy in Colorado: Why Curiosity Is a First Step to Healing – Colorado Wildflower Counseling

Somatic Therapy: Teaching the Body That the Danger Is Over

Sometimes your body is still reacting as though the past event is happening now.

Somatic therapy focuses on:

• Nervous system regulation
• Body awareness
• Reconnecting with cues of safety
• Listening to your body

This can help reduce:

• Dread
• Hypervigilance
• Panic
• Chronic tension and tightness
• Emotional overwhelm

Healing happens not just in your thoughts—but in your body.

Read more about Somatic Therapy on my blog here: Somatic Therapy for Anxiety, Depression, Stress and Trauma in Colorado – Colorado Wildflower Counseling

Why You’re Not Weak for Struggling to Move On

If you’ve been hard on yourself for “not being over it yet,” you’re not alone.

Most people were never taught how the nervous system actually works.

Your brain and body are trying to protect you using the tools they learned through experience.

That doesn’t mean you’re broken.

And it doesn’t mean you’ll feel this way forever.

What Healing Can Look Like

Over time, therapy can help you:

• Feel less emotionally reactive to memories
• Stop replaying events constantly
• Feel safer in your body
• Reduce intrusive thoughts and anxiety
• Build more self-trust and self-compassion
• Make recalling the memories feel neutral – it can happen, I promise.

The goal isn’t to erase the past.

It’s to help your system recognize that you survived it—and that you don’t have to keep reliving it.

Therapy for Anxiety, Trauma, and Intrusive Thoughts in Colorado

At Colorado Wildflower Counseling, I work with adults and parents navigating:

• Anxiety and overthinking
• Intrusive thoughts
• Trauma and stress
• Rumination and nervous system overwhelm

Using EMDR, IFS, and somatic therapy, we work toward lasting, meaningful change.

Virtual therapy across Colorado

Ready for More Support?

If you feel stuck replaying the past, therapy can help your system finally begin to loosen its grip.

You don’t have to force yourself to “just let it go.”

Healing is possible.

Feel free to check out my Instagram as well. I love choosing music to go with my posts! Naomi-EMDR, IFS, Somatic therapist in Colorado (@coloradowildflowercounseling) • Instagram photos and videos

There are also some amazing meditations on Insight Timer: https://insig.ht/szYJovWC52b

 FAQ

Why can’t I stop thinking about a past event?

Your brain may still see the event as emotionally unresolved or unsafe. The nervous system often keeps painful memories active to try to protect you from future harm.

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Is it normal to replay old memories?

Yes. Many people replay painful or embarrassing experiences, especially after trauma, anxiety, or emotionally intense situations.

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Can EMDR help me stop replaying memories?

Yes. EMDR helps the brain process memories so they feel less emotionally charged and less intrusive in daily life.

Why does my body still react to old experiences?

The nervous system stores survival responses. Even if you logically know you’re safe, your body may still respond as though the danger is current.

What therapy helps with rumination and overthinking?

EMDR, IFS, and somatic therapy can all help reduce rumination by addressing the underlying nervous system and emotional patterns.

Other related blogs:

EMDR Therapy in Colorado – Trauma Healing & Recovery

Serving Fort Collins, Loveland, Boulder, Denver, Summit County, Colorado Springs and anywhere with virtual therapy across Colorado.