irritable bowel syndrome - ibs - conceptual

irritable bowel syndrome ibs abdominal pain bloating diarrhea constipation gut health intestinal discomfort stress anxiety depression diet food intolerance fiber nutrition lifestyle probiotics gastrointestinal tract movements fodmap stool inflammation microbiome bacteria hypersensitivity motility disorder chronic condition lactose gluten sensitivity dysbiosis medical treatment visceral threshold rome criteria sibo functional gastroenterology permeability leaky diagnostic elimination conceptual illustration affecting large intestine without any identifiable organic cause