Sensory Overload and IBS

The Tummy Clinic | December 1st, 2025

Sensory Overload and IBS: Why Non-Food Stressors Trigger Symptoms

IBS isn’t only triggered by food — the gut reacts to the entire environment.

What Is Sensory Overload?

It’s when your system becomes overwhelmed by:

  • noise
  • bright lights
  • clutter
  • movement
  • strong smells
  • crowds
  • emotional intensity

These aren’t “mental” triggers — they’re neurological.

Why Sensory Stress Activates the Gut

When sensory input exceeds capacity, the nervous system shifts into a reactive state, leading to:

  • urgency
  • bloating
  • pain
  • motility changes
  • abdominal tension
  • fatigue

Your gut is picking up the overflow.

The Human Side of Sensory Triggers

People with IBS often say:

  • “Big stores overwhelm my gut.”
  • “Noise makes my stomach drop.”
  • “I can’t handle chaotic environments.”

This is not personality.
It’s physiology.

How TTC Helps Reduce Sensory Reactivity

We identify:

  • sensory thresholds
  • patterns of overload
  • your nervous system baseline
  • recovery speed

Then we help reduce reactivity and build resilience.

Frequently Asked Questions

Managing IBS with diarrhea can be challenging, but making the right food choices can help. Here’s what works for many people with IBS:

  • Low FODMAP diet: This dietary approach helps reduce symptoms like diarrhea, bloating, and stomach pain. It involves removing certain foods and gradually reintroducing them to see which ones trigger your symptoms.
  • Easy-to-digest foods: Stick with foods like plain rice, cooked carrots, zucchini, and lean proteins (e.g., chicken, fish) to ease digestion.
  • Avoiding triggers: Steer clear of fatty, spicy, or fried foods, as well as dairy and caffeine. These can worsen symptoms for many people with IBS.

If you’re unsure which foods work for you, consulting with a healthcare provider can help you create a personalized meal plan.

Bloating, gas, and stomach pain are common in IBS. These symptoms often result from:

  • Gas buildup: Undigested food or fermentation in the intestines can cause gas and bloating.
  • Gut motility issues: In IBS, food may move too quickly or slowly through the digestive tract, leading to discomfort.
  • Food sensitivities: Certain foods like high FODMAP foods can cause bloating or pain.

Managing these symptoms typically involves diet modifications, stress management, and finding the foods that work best for your body.

IBS constipation can be tough, but there are ways to improve bowel movements:

  • Increase soluble fiber: Foods like oats, bananas, and carrots can help soften stool.
  • Stay hydrated: Drinking plenty of water helps keep things moving.
  • Exercise regularly: Physical activity helps stimulate digestion.

If these strategies don’t work, gentle laxatives or stool softeners might be considered, but always under the guidance of a healthcare professional.

Certain foods can make IBS symptoms worse, including:

  • High FODMAP foods: These include foods like onions, garlic, certain fruits (e.g., apples, watermelon), and dairy.
  • Fatty foods: Rich, greasy foods often cause discomfort for those with IBS.
  • Caffeine and alcohol: These can irritate the digestive system and increase symptoms like diarrhea or bloating.

By tracking your food intake and symptoms, you can start to identify which foods are causing flare-ups and work toward a personalized plan.

Constant constipation in IBS can be caused by:

  • Low fiber intake
  • Dehydration: Not drinking enough water can make stool hard and difficult to pass.
  • Stress: Emotional stress often affects digestion and can contribute to constipation.

If constipation persists despite lifestyle changes, consider speaking with a healthcare provider for further assessment and potential treatment options.

Severe bloating can occur when:

  • Gas is trapped in the intestines due to difficulty digesting certain foods or fermentation.
  • Slow motility: In IBS, the digestive system may move food too slowly, leading to bloating.

To manage bloating, consider reducing high FODMAP foods and incorporating more digestive-friendly meals. Stress management techniques like yoga or mindfulness can also help reduce bloating by calming the nervous system.