Benign Sensations the Brain Can Misinterpret

Why Stress and Trauma Make the Brain More Likely to Get It Wrong

By Dr. Jennifer Gans

One of the most helpful ways to understand tinnitus—and many other puzzling body sensations—is to recognize that these experiences do not occur in isolation.

They often emerge when the brain is under heightened stress or after a significant life event, when the nervous system is more alert, more vigilant, and more focused on detecting potential threats.

In these states, the brain is not malfunctioning. It is working harder to protect us.

But in doing so, it can sometimes make a perceptual error—mislabeling a benign sensation as something important or dangerous.

 
The Brain Under Normal Conditions

Under typical conditions, the brain is constantly receiving sensory input from the body and the environment:


It filters, organizes, and prioritizes this information efficiently.

Most sensations are categorized automatically as:

“Not important. No action needed.”

This allows us to move through the world without becoming overwhelmed by the constant stream of sensory input.

 
What Changes Under Stress

When the brain is under stress—or has recently experienced trauma—it shifts into a different mode.

Its primary question becomes:

“Is there anything here I need to worry about?”

In this state:

This is adaptive. It is designed to keep us safe.

But it also increases the likelihood that the brain will misinterpret neutral or ambiguous signals.

 
The Perceptual Error

When a new or unfamiliar sensation appears during this heightened state, the brain may respond with uncertainty:

“What is this?”
“Could this be a problem?”

Because the system is already on alert, it is more likely to err on the side of caution and label the sensation as important or threatening.

This is the perceptual error.

The sensation itself is benign.
The brain’s interpretation is what creates distress.

 
Why the Sensation Feels Stronger

Once the brain labels a sensation as important:

The sensation becomes more noticeable—not because it has changed, but because the brain has prioritized it.

This creates a reinforcing loop:

The brain then takes this increased awareness as further evidence that the sensation is important.

 
Common Examples

This pattern can be seen across many experiences:

In each case, the sensation is not new or dangerous—the context in which it is perceived has changed.

 
Why Not Everyone Is Bothered

Many people experience these same sensations but are not distressed by them.

The difference is not the signal—it is the state of the nervous system and the interpretation of the brain.

When the brain is calm, it categorizes the sensation as unimportant.

When the brain is under stress, it is more likely to categorize the same sensation as something that requires attention.

 
Bringing It Back to Tinnitus

Tinnitus often begins during periods of:


In these moments, the brain is already in a vigilant, protective state.

When a new auditory sensation appears, the brain is more likely to ask:

“Is this a problem?”

And if that question is not answered clearly, the brain may begin to monitor the sound.

The sound itself is benign.
The distress comes from the brain treating it as a threat.

 
The Path Back to Neutral

The goal is not to eliminate the sensation.

The goal is to help the brain update its interpretation.

This happens through:

As the nervous system settles, the brain returns to a more balanced state.

And in that state, it is far more likely to recognize:

“This is not dangerous. I do not need to pay attention to this.”

 
From Protection to Accuracy

Under stress, the brain prioritizes protection over accuracy.

It would rather overreact than miss something important.

But once the brain is given the correct information—and the nervous system begins to calm—it can shift back toward accuracy.

The perceptual error resolves.

 
Final Thought

These experiences are not signs that something is wrong with the body.

They are signs that the brain is doing what it is designed to do—protecting us in a moment of heightened sensitivity.

Sometimes, it simply needs help recalibrating.

And when it does, the sensation often fades into the background, where it belongs.

 
 

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