Indigestion, also known as dyspepsia, is a general term for the pain or discomfort you feel in your stomach and under your ribs, usually after eating (although you can experience similar symptoms on an empty stomach).

Caused by excess stomach acid, indigestion can strike at any time and there are many different causes, from rich food and fizzy drinks to stress and eating on the run. Some people get indigestion a couple of times a year but others suffer every day with symptoms ranging from mild discomfort that lasts just a few minutes to severe pain, sometimes accompanied by nausea and vomiting, that goes on for several hours.