I've gone through the "fear" thing so I know exactly what you're going through. I am still very fearful to try new things.
But I have an excellent handle on my IBS now. I never get pain anymore and only occasional D, usually at very predictable times.
Please e-mail (click on my profile for my e-mail address) and I will be happy to help you. I employ a very natural, common sense approach to controlling my IBS, which includes Heather's dietary laws, eating organic and staying away from prepared foods that contain additives. I don't take any medication for my IBS.
Whereas I used to have sudden painful, unpredictable IBS attacks that would leave me sore for up to two weeks afterwards, I now enjoy a wonderful, pain-free life with a well balanced diet. It took me 45 years to get to this point, but I made it!
I can also give you some tips on food when travelling. I travel back and forth between Canada and the U.S. (five-hour flights east to west coast) all the time and, for one thing, I never touch airline food!