Re: I have more gas now than I ever had in my life.
If you eat pop tarts for breakfast, a sandwich for lunch, and pizza sometimes for dinner, you are eating TONS of wheat. (Plus, it is probably hidden in lots of other products you wouldn't think of that would have wheat, like mushroom soup or soy sauce).
At least one study has found an association between people with IBS and an intolerance for gluten/wheat. Gluten intolerance can develop at any age.
I have similar problems, and am experimenting with eliminating wheat from my diet. It's only been about 2 days, but I think I'm starting to notice a difference. (The diet is a pain, because I love bread, pasta, etc., but if it will give me relief, I think I will stick with it).
If it isn't the wheat, odds are it's the dairy....