As part of your digestive system, your colon, or large intestine, turns undigested food into stools and absorbs water and electrolytes. For between 25-45 million Americans with IBS, however, the colon doesn’t work exactly how it should. While the exact cause of IBS isn’t known, researchers have found the condition changes how food and waste move through your large intestine. These changes result in frustrating symptoms, like abdominal pain and irregular bowel movements. Here’s a look at some of the most common signs and symptoms of IBS: • Food intolerances (which vary between people) • Constipation and/or diarrhea (this can sometimes alternate) • Cramping, bloating, and gas • Mucous in/with stools • Issues with sleep and/or fatigue • Anxiety and depression For an IBS diagnosis, symptoms must take place for at least 6 months with weekly pain for at least 3 months. These symptoms can range from mild to severe, and if you’re a woman, they may get worse when you have your period or are pregnant.