By Dr. Andreea Tănăsescu, M.D. | Smart Aging and Gut Health Do you often experience bloating, abdominal pain, gas, diarrhea, or constipation — but your medical tests come back "normal"? You are not imagining it. And you are not alone. As a healthcare professional working in the field of gut health and functional medicine, I frequently meet patients silently struggling with Irritable Bowel Syndrome (IBS) — a complex and often misunderstood functional gastrointestinal disorder.