There are so many things that can contribute to this, but you already know about some foods.... If you eat high fat foods and eat those particular foods too, that will cause such a reaction. It's only once you clear your body of the crud that eating the healthy foods won't cause much of that.

But... do you chew with your mouth open? Do you gulp your food, your drinks? Do you snore? Do you chew gum? Are you allergic?

I mean... the list goes on and on. But carbonated drinks will surely instigate the problem.

Do you take digestive enzymes? Possibly you are lacking them.