How does IBS digestive process work?

IBS. The main symptoms of ibs are abdominal pain, fullness, gas, and bloating that have been present for at least 3 days a month for the last 3 months. The pain and other symptoms will often: be reduced or go away after a bowel movement occur when there is a change in how often you have bowel movements people with ibs may switch between constipation and diarrhea, or mostly have one or the other.