What is the difference between heartburn, GERD, and acid reflux?

Acid reflux is the backward flow of stomach acid into the oesophagus. Heartburn is the burning symptom that acid reflux causes, a feeling of heat or burning in the chest or throat. GERD (gastro-oesophageal reflux disease) is the diagnosis given when acid reflux is frequent (typically more than twice per week) and causes troublesome symptoms or complications. Occasional heartburn is common and does not mean you have GERD.

When should I see a doctor about acid reflux?

See a doctor if reflux symptoms occur more than twice per week, significantly affect your quality of life, or have not responded to over-the-counter antacids or H2 blockers after 2 weeks. Seek urgent review for: difficulty swallowing, pain on swallowing, unexplained weight loss, vomiting blood, or black tarry stools: these are red flags requiring gastroscopy.

Are PPIs safe to take long-term?

PPIs are generally safe for most patients at standard doses for the duration needed. Concerns about long-term use include: slightly reduced magnesium absorption (relevant at doses above omeprazole 40mg for more than 1 year), reduced calcium absorption (theoretical bone density concern at very high, prolonged doses), and marginal increase in C. difficile infection risk. For most patients managed at standard doses, the benefits of GERD control outweigh these risks. Your doctor should review whether continued use is necessary.

What lifestyle changes help GERD?

Evidence-based changes: eat smaller meals and avoid eating within 3 hours of lying down; elevate the head of the bed 15, 20cm (use bed risers, not extra pillows); lose weight if overweight, even 5–10% weight loss significantly reduces reflux; reduce or eliminate alcohol and smoking; limit chocolate, coffee, citrus, tomatoes, and fatty foods if these are personal triggers. Not all triggers affect all patients, your symptom diary will identify which are relevant for you.

What is Barrett's oesophagus and should I be worried?

Barrett's oesophagus is a condition where the normal lining of the lower oesophagus is replaced by intestinal-type cells, caused by chronic acid exposure. It is a precancerous change: people with Barrett's have a higher risk of developing oesophageal adenocarcinoma, though the absolute risk remains low (approximately 0.3% per year). Barrett's is diagnosed by gastroscopy and biopsy. If confirmed, surveillance gastroscopy every 2, 5 years is recommended depending on the grade of change. Good acid suppression with PPIs is the primary management.

Preparing for Appointments with GERD or Acid Reflux

Quick answer: Keep a 2-week food and symptom diary before your appointment: recording what you ate, when symptoms occurred, and what made them better or worse. This is the single most useful piece of information for a GERD or acid reflux appointment. Also bring a complete medication list, including any antacids, PPIs, or H2 blockers you have tried and whether they helped.

Gastro-oesophageal reflux disease (GERD, or GORD in Australian/UK usage) is one of the most common GI conditions globally. Appointments often move quickly, and without a structured symptom record, it can be hard to convey the full picture of how your symptoms affect your daily life. A clear account of triggers, timing, and treatment history makes the consultation significantly more useful.

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What to Track Before Your Appointment (2 Weeks)

Meals: What you ate and drank, and when. Note portion sizes if relevant.
Symptoms: Heartburn (burning behind the breastbone), regurgitation (acid coming up), chest pain, difficulty swallowing (dysphagia), chronic cough, hoarse voice, or a persistent lump sensation in the throat (globus)
Timing: When symptoms occur: during or after meals, lying down, overnight, early morning
Severity: Rate each episode 0, 10 and note how long it lasts
Triggers: Fatty foods, chocolate, coffee, alcohol, tomatoes, citrus, spicy food, large meals, eating close to bedtime
What helps: Antacids, sitting upright, not eating for 3 hours before lying down

A Doctor Appointment Journal with meal and symptom logging pages makes this far easier to hand to your doctor than a verbal summary. Gastroenterologists and GPs frequently ask patients to bring written records. It removes the need to reconstruct two weeks of meals from memory in a 15-minute appointment.

What to Bring

Food and symptom diary (2 weeks minimum)
All medications tried: antacids (Gaviscon, Mylanta), H2 blockers (famotidine, ranitidine), PPIs (omeprazole, esomeprazole, pantoprazole), doses and whether they helped
Any previous endoscopy or barium swallow reports
List of all other medications: NSAIDs (ibuprofen, aspirin), calcium channel blockers, bisphosphonates, and some antidepressants worsen reflux
BMI/weight history, excess weight is a major driver of GERD

Warning Symptoms, Mention These Immediately

The following symptoms require urgent investigation and should be mentioned at the start of your appointment:

Difficulty swallowing (dysphagia) or pain on swallowing (odynophagia)
Unintentional weight loss
Vomiting blood or passing black, tarry stools
Persistent vomiting
Feeling of food sticking in the chest
Iron deficiency anaemia

These are red-flag symptoms that prompt urgent gastroscopy to exclude Barrett’s oesophagus, stricture, or malignancy.

What Investigations to Expect

Gastroscopy (OGD): Camera passed through the mouth to inspect the oesophagus and stomach. If you have red-flag symptoms, recurrent symptoms despite treatment, or are over 55, a gastroscopy is typically recommended. Performed under light sedation as a day procedure.
pH monitoring / impedance study: A probe measures acid exposure in the oesophagus over 24 hours. Used when diagnosis is uncertain or before anti-reflux surgery.
Barium swallow: Less commonly used; shows the oesophagus and stomach structure on X-ray.
H. pylori testing: Helicobacter pylori infection can contribute to upper GI symptoms. Tested via breath test, stool antigen, or biopsy during gastroscopy.

Questions to Ask

Do I need a gastroscopy given my symptoms and age?
Is my current PPI dose and timing correct, am I taking it 30 minutes before a meal?
How long should I be on a PPI, and what is the plan to step down?
Could a hiatus hernia be contributing, and does it need treatment?
What dietary and lifestyle changes are most evidence-based for my symptoms?
Should I be tested for H. pylori?

Regional Notes

Singapore: GERD is managed by GPs and gastroenterologists at restructured hospitals and private clinics. PPIs (omeprazole, pantoprazole) are on the Standard Drug List and subsidised at polyclinics. Gastroscopy at restructured hospitals: SGD 300, 800 subsidised; private: SGD 800, 2,500. H. pylori prevalence in Singapore is approximately 30%.

Australia: GP-managed initially; gastroenterology referral for red flags or treatment failure. Gastroscopy is MBS-rebatable under relevant indications. PPIs are PBS-subsidised. Nurse endoscopists are available in some centres for straightforward diagnostic gastroscopy.

United States: Managed by primary care or gastroenterologist. Gastroscopy covered by most insurers for relevant indications. Routine GERD without red flags is typically managed with PPIs for 8 weeks as first-line before further investigation.

KEY SOURCES

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Helpful for this appointment

fingertip pulse oximeter, to monitor your blood-oxygen levels at home
peak flow meter, to track your lung function between visits

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Medical Disclaimer: This guide is for informational and preparation purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult a qualified medical professional for guidance specific to your situation.