September 2026
Have you ever felt a burning sensation in your chest after a meal, a sour taste in your mouth, or discomfort when lying down at night? These symptoms are often casually called “acidity”. But frequent or persistent symptoms may actually be related to gastroesophageal reflux disease (GERD).
What Do We Mean by “Acidity”?
“Acidity” is a commonly used term for symptoms such as:
- Burning in the upper abdomen or chest
- Sour or acidic taste in the mouth
- Belching
- Indigestion
- Discomfort after eating
What Is GERD?
GERD (gastroesophageal reflux disease) is a condition in which stomach contents repeatedly flow back into the esophagus and cause troublesome symptoms and/or complications. Some people can also experience chronic cough, throat irritation or hoarseness, although these symptoms can have many other causes as well.
- Heartburn
- Regurgitation or sour taste
- Burning or discomfort behind the breastbone
- Symptoms that become worse after meals or when lying down
Acidity vs GERD: What's the Difference?
- Occasional acidity symptoms may happen from time to time after certain meals or eating habits.
- Frequent or troublesome reflux symptoms may indicate GERD and deserve medical evaluation.
What Can Trigger Reflux Symptoms?
Some common factors include:
- Large meals — eating a very large meal can increase stomach pressure and make reflux more likely
- Eating close to bedtime — lying down soon after eating can make reflux more noticeable
- Fatty or fried foods — high-fat meals may worsen symptoms in some people
- Spicy foods — these can trigger discomfort in some individuals
- Tea, coffee and other caffeine-containing drinks
- Carbonated drinks — fizzy beverages can increase belching and may aggravate symptoms
When Should You See a Gastroenterologist?
Occasional heartburn may not be a cause for concern. However, consult a doctor if symptoms are frequent, persistent, worsening, or interfering with your daily life or sleep. Seek prompt medical attention for warning symptoms such as:
- Difficulty or pain while swallowing
- Unexplained weight loss
- Vomiting blood
- Black, tarry stools
- Persistent vomiting
- Chest pain
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This article is general information and not a substitute for a consultation. Please speak to a doctor about your own symptoms.