Dr Gina Sims Gastroenterologist Answers Questions About Acid Reflux and GERD

Dr Gina Sims Gastroenterologist is a board-certified digestive health specialist who helps patients understand, manage, and treat conditions like acid reflux and GERD through careful evaluation, clear explanations, and personalised care plans. 

Many people live with ongoing heartburn or chest discomfort without realising what is happening inside their digestive system. I want to break this down in plain language, starting with the basics, so you can recognise symptoms early and know when it is time to seek medical support.

What acid reflux and GERD actually are

Acid reflux happens when stomach acid flows back into the oesophagus, the tube that carries food from your mouth to your stomach. This backflow irritates the lining and causes symptoms such as burning in the chest or a sour taste in the throat.

GERD, which stands for gastroesophageal reflux disease, is a long-term form of acid reflux. It is diagnosed when reflux occurs frequently, usually more than twice a week, or when it starts causing complications like inflammation, ulcers, or breathing problems.

From a clinical perspective, the key difference is frequency and impact. Occasional reflux after a heavy meal is common. GERD is ongoing and often interferes with daily life, sleep, and overall wellbeing.

Why reflux happens in the first place

The digestive system relies on a small ring of muscle called the lower oesophageal sphincter. This valve opens to let food into the stomach and then closes to keep acid where it belongs. When this muscle weakens or relaxes at the wrong time, acid can escape upward.

Several factors increase the chances of this happening:

• High stomach pressure from overeating or obesity
  
• Certain foods that relax the sphincter, such as chocolate, caffeine, or fried meals
  
• Smoking, which weakens muscle tone
  
• Pregnancy, due to hormonal changes and pressure on the abdomen
  
• Some medications, including calcium channel blockers and certain pain relievers
  

In my clinic, I often see patients who assume reflux is random. In reality, there is usually a clear pattern once we look closely at diet, habits, and medical history.

Common symptoms people often ignore

Many patients think reflux only means heartburn. In practice, symptoms can be much broader and sometimes misleading.

Typical symptoms include:

• Burning pain behind the breastbone
  
• Acid taste in the mouth
  
• Regurgitation of food or liquid
  
• Upper abdominal discomfort
  

Less obvious symptoms can include:

• Chronic cough
  
• Hoarseness or voice changes
  
• Feeling of a lump in the throat
  
• Worsening asthma symptoms
  
• Poor sleep due to night-time reflux
  

I often meet people who have seen ENT specialists or pulmonologists for months before realising the root cause is digestive.

When acid reflux becomes GERD

Reflux turns into GERD when symptoms persist and start damaging tissue. This is not just about discomfort. Long-term acid exposure can lead to complications that need careful monitoring.

These include:

• Oesophagitis, which is inflammation of the oesophagus
  
• Strictures, where scarring narrows the oesophagus and makes swallowing difficult
  
• Barrett’s oesophagus, a condition where normal cells change due to acid exposure
  

Barrett’s oesophagus does not mean cancer, but it does raise the risk of oesophageal cancer. This is why proper diagnosis matters.

How Dr Gina Sims Gastroenterologist approaches diagnosis

When someone visits me with reflux symptoms, I do not rely on guesswork. Diagnosis starts with listening. I want to understand when symptoms started, what triggers them, and how they affect daily life.

Depending on the case, testing may include:

Upper endoscopy

This procedure allows direct visual inspection of the oesophagus and stomach. It helps identify inflammation, ulcers, strictures, or cell changes.

pH monitoring

A small device measures how often acid enters the oesophagus over 24 to 48 hours. This is especially useful when symptoms are unclear.

Oesophageal manometry

This test checks muscle function in the oesophagus and sphincter. It is helpful when swallowing issues are present.

Not every patient needs every test. The goal is targeted evaluation rather than unnecessary procedures.

Lifestyle changes that genuinely make a difference

Medication plays a role, but daily habits matter just as much. Small changes can significantly reduce symptoms when done consistently.

I often guide patients through steps such as:

• Eating smaller meals instead of large portions
  
• Avoiding lying down within three hours after eating
  
• Raising the head of the bed by 6 to 8 inches
  
• Reducing trigger foods rather than cutting everything at once
  

Common food triggers include spicy dishes, tomato-based sauces, citrus fruits, onions, garlic, and carbonated drinks. Instead of strict lists, I encourage keeping a food and symptom diary to identify personal triggers.

Understanding treatment options

Treatment is not one-size-fits-all. The plan depends on symptom severity, test results, and lifestyle factors.

Antacids

These provide quick relief by neutralising stomach acid. They are useful for occasional symptoms but do not heal tissue damage.

H2 blockers

Medications like famotidine reduce acid production for several hours. They are often used for mild to moderate symptoms.

Proton pump inhibitors

PPIs reduce acid more strongly and allow healing of inflamed tissue. They are commonly prescribed for GERD and oesophagitis.

Here is a simple comparison that patients often find helpful:

Medication should always be reviewed regularly. Long-term use requires monitoring to avoid side effects such as nutrient deficiencies.

Addressing concerns about long-term medication

One of the most common questions I hear is whether acid-reducing medication is safe to take for years. The answer depends on individual risk and benefit.

For some patients, long-term therapy prevents serious complications. For others, medication can be tapered once symptoms are controlled and lifestyle changes are in place.

I make these decisions carefully, based on medical history, age, bone health, kidney function, and symptom response.

Surgical and procedural options

When medication does not work or is not tolerated, other options may be considered.

Fundoplication

This surgery strengthens the lower oesophageal sphincter by wrapping part of the stomach around it. It can significantly reduce reflux in selected patients.

Endoscopic procedures

Newer techniques use endoscopy to improve valve function without traditional surgery. These are not suitable for everyone but can help certain cases.

Surgery is never the first step. It is reserved for patients who have clear evidence of reflux and have not responded to other treatments.

GERD in children and older adults

Reflux affects all age groups, but presentation differs.

In children, symptoms may include poor feeding, irritability, or failure to gain weight. In older adults, pain may be less obvious, while complications are more common.

Age-specific evaluation is essential. I adjust testing and treatment based on these differences rather than applying adult protocols universally.

How reflux affects sleep and mental health

Night-time reflux is more than a nuisance. It disrupts sleep, worsens fatigue, and can affect mood and concentration.

Poor sleep also increases sensitivity to pain and discomfort, creating a cycle where symptoms feel worse over time. Addressing sleep posture and evening habits often brings noticeable improvement.

Real-life example from clinical practice

A patient once came to me after years of chest tightness and throat clearing. Cardiac tests were normal. Asthma treatments had not helped. After pH monitoring, we confirmed GERD with significant night-time acid exposure.

With targeted medication, bed elevation, and timing meals earlier, symptoms improved within weeks. This case highlights how reflux can mimic other conditions and why accurate diagnosis matters.

When to seek medical attention

Occasional reflux is common. Certain warning signs should never be ignored.

These include:

• Difficulty or pain when swallowing
  
• Unintentional weight loss
  
• Persistent vomiting
  
• Black or bloody stools
  
• Chest pain that does not clearly relate to meals
  

These symptoms require prompt evaluation to rule out serious conditions.

Ongoing care and monitoring

GERD is often a chronic condition, but that does not mean constant discomfort. With proper care, most patients achieve good symptom control and avoid complications.

Follow-up visits allow treatment adjustment, monitoring of healing, and reassurance. I encourage patients to view digestive care as a partnership rather than a single appointment.

Why patients value this approach

Patients often tell me that understanding what is happening in their body reduces anxiety as much as medication reduces symptoms. Clear explanations help people feel in control rather than overwhelmed.

Dr Gina Sims Gastroenterologist focuses on education, careful testing, and personalised planning rather than quick fixes. This approach helps patients manage reflux with confidence and clarity.

Contact Dr Gina through book an appointment page.

Living well with acid reflux and GERD

Reflux does not have to define daily life. With the right support, most people return to normal eating, better sleep, and improved comfort.

If symptoms are persistent or confusing, professional guidance makes a real difference. Digestive health is closely tied to overall wellbeing, and addressing reflux properly supports long-term quality of life.

By recognising symptoms early, understanding treatment options, and following a clear plan, patients can move forward with less discomfort and more peace of mind.