Rose you seem like you got a good sense of humor, hope you don't mind the pun..
Anyway, Volatile, (a great name for you I think! lol) Guess what!!! Heather's Diet doesn't work for everyone, it workes partially for others, and fotunately work fabulously for a lot of people. I bought her book and acacia fiber, and it didn't work for me entirely.. But I found LATER that I don't have only IBS, and my first clue was using Heather's diet protocol to discover it.. I have been diagnosed with an auto-immune condition, (Behcet's which is Crohns like in it's intestinal issues symptom wise). So I discontinued all fiber, only use Miralax and follow a combo of Heather's diet and Gluten Free.. I was able to pin point my triggers with Heather's eating plan. You will have to try and by elimination know what your triggers are, I'd add "bagels" to my list if I were you, Oh, I also wondered if you are getting any foo-foo coffee drinks on your Starbuck's runs,, There may be something tirggering in them if so, and also if you are drinking any soda, that might be another suspect for the bloating...