Recent research has shown that IBS and other problems has been caused by gluten intolerance. There is hope for people who have IBS and there are ways to slow and reverse the problem. The first way tis to fix the foundations of your immune system.
The symptoms can be checked- likely that there has been a reaction to gliadin, which is found in gluten.
Other things that cause symptoms: pesticides, soy, the nightshade family (tomato, potato, preservatives.
Dairy: Response to dairy products include gas and bloating. It is helpful to cut out diary products to check to see if this helps your symptoms. All cheeses, milk and butter. They tend to create mucus in the body as the body tries to deal with it.