Indigestion is usually pain or discomfort in your stomach (dyspepsia) or a burning pain in the chest (heartburn).  These symptoms can either be experienced together or on their own and more often than not are felt soon after eating or drinking.

Other symptoms can include:

• Feeling full or bloated,
• Feeling sick
• Belching

Bringing up food or fluids into your throat.

Many people are affected by indigestion and in most cases it is mild and only happens occasionally. 

Indigestion is caused by acid from the stomach coming into contact with the protective lining of the digestive system, called mucosa.  The lining can be broken down by the acid which becomes inflamed and irritated.  Some people may have inflammation of their digestive system which is caused when the mucosa is especially sensitive (see Oesophagitis).

In most cases, indigestion happens after eating or drinking but can also be a result of smoking, drinking alcohol, pregnancy, stress or certain medications.

To treat indigestion you will need to make a few changes to your diet and lifestyle  and by trying over the counter medications such as antacids.

In rare cases, there maybe an underlying cause to the symptoms you experience which must be checked by a doctor.  If you experience indigestion frequently for 3 weeks or more or your symptoms are caused by specific medication you are taking, please see your GP.

References:

NHS Inform Indigestion - Illnesses & conditions | NHS inform