In this section you can learn all about IBS: what it is and what it isn’t, what researchers think causes it, its symptoms, triggers, and how it is diagnosed. You can also learn about the relationship between your brain and your gut, and the role of stress in IBS. Take special note of the write-up on the warning signs that what you have is not IBS. If you need some advice or information that’s not addressed here or if there’s anything you’d like explained in more detail, just ask.