What causes Irritable Bowel Syndrome?

Functional dyspepsia
This is the name given to a disorder similar to IBS which affects the top end of the gut. The main symptoms are tummy pain affecting the upper abdomen associated with bloating, nausea or feeling easily full up after meals. Patients with functional dyspepsia frequently also suffer from symptoms of IBS so they may, for instance, have an irregular bowel habit. Treatment is not that different to the treatment of IBS with antidepressants often proving quite helpful. We have also shown that hypnotherapy is helpful with this condition (103).