Indigestion While Fasting: What to Know

Acid reflux can cause burning or sour fluid, while gastritis can irritate the stomach lining and cause nausea or soreness. Helicobacter pylori infection and peptic ulcer disease are other possibilities, particularly when discomfort persists or returns. Gallstones more often cause pain under the right ribs after meals, and a hiatus hernia can contribute to reflux symptoms. See the symptom overview for more context on indigestion.

Keep a brief record of fasting hours, foods and drinks at the first meal, medicines, and the timing of symptoms. When eating resumes, choose a modest meal, eat slowly, and drink fluids steadily during permitted hours. Limit personal triggers such as very fatty meals, chilli, caffeine, and fizzy drinks. Avoid lying flat soon after eating. A pharmacist or clinician can advise whether acid reflux medication is suitable, especially if you take other medicines or have a stomach condition.

Seek urgent medical help for chest pressure, trouble breathing, fainting, vomiting blood, black stools, severe or worsening abdominal pain, repeated vomiting, or difficulty swallowing. Arrange a medical review if symptoms keep returning, disturb sleep, cause unexplained weight loss, or do not settle after changing meal and drink patterns. If fasting is part of religious practice, discuss safe adjustments with a clinician when symptoms are significant.

Ask what pattern best fits your symptoms, whether testing for Helicobacter pylori is appropriate, and which medicines can irritate the stomach. Ask how to manage fasting alongside any prescribed treatment and which symptoms should end the fast and prompt care.