Loss of appetite and an upset stomach: what to know

Nausea, bloating, indigestion, cramps or loose stools can make food unappealing. Short-lived gastroenteritis may bring vomiting or diarrhoea, while gastritis or a peptic ulcer can cause upper abdominal discomfort and nausea. Reflux, medicines, food intolerance and emotional strain are other possibilities. These symptoms overlap, so the pattern and accompanying signs matter more than one symptom alone.

Note where discomfort is located, when it occurs, what you ate, bowel changes, vomiting, fever and medicines such as anti-inflammatory painkillers. This information can help a clinician decide whether examination or testing is needed.

Take frequent small sips of water or an oral rehydration drink if vomiting or diarrhoea is present. When ready, try plain or familiar foods in modest portions and increase variety as tolerated. Avoid alcohol and foods that clearly worsen symptoms. Rest, wash hands carefully, and avoid preparing food for others while actively vomiting or having diarrhoea.

Do not take leftover antibiotics or stop prescribed treatment without advice. A pharmacist or clinician can help you choose symptom relief that fits your health history and current medicines.

Seek prompt medical advice for symptoms that continue or recur, inability to eat, repeated vomiting, worsening pain, fever, unplanned weight change, or signs of dehydration such as very dark urine and dizziness. Get urgent help for severe or localised abdominal pain, a swollen abdomen, vomit containing blood, black stools, fainting, confusion, or yellowing of the skin or eyes.

Ask which causes fit your symptom pattern, whether any medicine may be irritating your stomach, what fluids and foods are suitable, and which changes should prompt urgent care.