Yes, stress is the main cause of IBS. I started out with it and now have colitis. I have had stomach problems since childhood. Before a test at school it hit me like ton of bricks. As an adult, I remember days I could not get out of the bathroom and was late for work. Yes, it is hard to live with. There have been many times it lasted all day and I could not leave the house at all. Unless, I fell like wearing a diaper. NOT! All you can do is watch you diet. Also you may have lactose intolerence like I do. That will do it all the time and boy do I love my chocolate milk.
There are medictions out there for IBS but, I choose not to take them anymore.
Carrie