Causes of stomach bloating at night

Bloating is a feeling of fullness or visible abdominal distension. It can become more noticeable after meals as food, fluid, and gas move through the digestive tract. Eating quickly, fizzy drinks, chewing gum, and talking while eating can increase swallowed air. Constipation can also trap stool and gas, making the abdomen feel tight by bedtime.

Lactose intolerance or another food intolerance may cause bloating after a particular food, sometimes with cramps or loose stools. Irritable bowel syndrome can combine bloating with abdominal discomfort and changes in bowel habit. Coeliac disease, giardiasis, or Helicobacter pylori infection are other possible explanations when symptoms persist or come with diarrhoea, weight change, nausea, or upper abdominal discomfort.

Keep a short diary of evening foods, portion size, bowel movements, symptoms, and timing. Eat slowly, limit fizzy drinks, and take a gentle walk after dinner. Regular fluids and fibre can support bowel movements, but increase fibre gradually if it worsens gas. A nutrition counsellor can help review patterns without removing many foods unnecessarily.

Arrange a medical review for persistent or recurrent bloating, unexplained weight loss, ongoing vomiting, blood in stool, prolonged diarrhoea, or a lasting change in bowel habit. Seek urgent help for severe or rapidly worsening pain, a rigid swollen abdomen, repeated vomiting, or inability to pass stool and gas.

Which foods or bowel patterns could explain my evening symptoms? Should I be checked for intolerance, coeliac disease, infection, or another digestive condition? How can I manage constipation safely? Would nutrition counselling help me plan a balanced trial?