GERD Treatment: Why Reflux Symptoms Persist (Even When You’re Doing Everything Right)
Reflux symptoms like heartburn, chest discomfort, or regurgitation are often assumed to be caused by excess stomach acid.
But many people find themselves stuck:
symptoms continue despite treatment
medications only partially help
testing doesn’t fully explain what they’re feeling
If this sounds familiar, you’re not alone. GERD is often more complex than it’s presented—and understanding why is the first step toward lasting relief.
What Is GERD?
Gastroesophageal reflux disease (GERD) occurs when stomach contents move back into the esophagus in a way that leads to symptoms or complications. But an important and often overlooked point:
👉 Reflux itself is normal 👈
The average person experiences approximately 40 reflux events per day. The difference in GERD is not simply the presence of reflux—it’s how the body responds to it.
GERD Is Not One Condition
One of the biggest misconceptions about reflux is that it’s a single disease with a single cause.
In reality, reflux includes multiple distinct phenotypes:
erosive esophagitis
non-erosive reflux disease (NERD)
reflux hypersensitivity
functional heartburn
Each of these involves different underlying mechanisms, which is why treatment responses vary so widely.
Why Reflux Symptoms Persist (Even on Treatment)
Many people continue to experience symptoms despite acid-suppressing medications and dietary changes. This often happens because stomach acid volume and shifts are not the only drivers of symptoms. In many cases, symptoms are related to:
Esophageal hypersensitivity. The esophagus becomes more sensitive to normal reflux events.
Gut–brain interaction. The nervous system amplifies signals from the digestive tract.
Functional disorders. Symptoms occur without visible damage or abnormal testing. This is why two people with similar symptoms can respond completely differently to the same treatment.
The Overlap Between GERD and Gut–Brain Disorders
A significant number of people with reflux symptoms fall into a category known as Disorders of Gut–Brain Interaction (DGBIs). This includes conditions like reflux hypersensitivity and functional heartburn.
In these cases, reflux events may be normal, acid levels may be normal, but symptoms are still very real. This helps explain why:
PPIs don’t always work
tests may come back normal
symptoms persist long-term
Why PPIs Don’t Work for Everyone
Proton pump inhibitors (PPIs) are the first-line treatment for reflux and can be very effective in certain situations—especially when there is significant acid exposure, gastritis, or tissue damage. However, many people do not get full relief. This is because PPIs reduce acid, but they do not:
address hypersensitivity
regulate nervous system signalling
correct all underlying drivers of reflux
Is Low Stomach Acid the Cause?
A common belief—especially online—is that reflux is caused by low stomach acid. However, current gastroenterology evidence does not support low stomach acid as a direct cause of GERD.
Reflux is more often related to things like pressure dynamics, sphincter function, esophageal sensitivity, and gut–brain signalling. Focusing only on acid levels can miss the bigger picture.
Why GERD Testing & Treatment Can Be Confusing
👉 There is no single gold standard test for GERD. A thoughtful clinical assessment is often more informative than relying on a single test.👈
Some people have obvious reflux symptoms but normal tests (i.e., a normal endoscopy and normal pH monitoring test), whereas some people have abnormal tests but minimal symptoms. This is because reflux is:
partly structural
partly functional
partly neurological
Because reflux symptoms can come from multiple pathways, treatment often needs to address more than one factor. This is why a personalized approach that addresses aspects like esophageal sensitivity, gut motility, nervous system regulation, dietary triggers, and the microbiome can be more effective than a one-size-fits-all approach.
When Reflux Isn’t Just “Acid Reflux”
If you’ve been told, “Everything looks normal,” “just stay on medication,” or “avoid trigger foods,” but you still experience symptoms, it may be worth exploring reflux hypersensitivity, functional heartburn, and the way your brain communicates to your gut along the gut-brain axis.
Understanding which type of reflux you have is often the missing piece.
How I Approach GERD Treatment
I take a structured, root-cause approach to reflux using a 3-step framework:
Investigate
A detailed assessment of your symptoms, history, and contributing factors.
Identify
Clarifying the specific drivers of your reflux—whether structural, functional, or gut–brain related.
Implement
A personalized plan addressing digestion, nervous system regulation, and lifestyle factors.
Work With Me
If you’re dealing with persistent reflux symptoms and not getting answers, a more comprehensive approach may help. I work with patients experiencing GERD, reflux hypersensitivity, and gut–brain digestive disorders in Burlington, Oakville, and virtually.