There is no doubt in my experience that stress in conjunction with lack of natural food will create IBS. I have had several bouts of this debilitating condition and have cured it by removing stress as much as possible and drinking fennel tea. Make a tea in a small stainless pot,with one large teaspoon of whole fennel seeds and a pint of spring or filtered water.Gently simmer tea for about ten minutes and allow to cool. Drink about a quarter of a pint, two or three times a day. The first cup,I usually take on an empty stomach. Sometimes if it is really bad, I make two pots and allow the seeds to meditate for a day or so which can make it slightly more potent. Don't keep it for too long. Love to you all.