I have unexpected burps with bile coming up into my mouth. At the same time I feel bloated. I don t have any pains, nausea , or diarrhea . I am on a pretty healthy diet: almost totally dairy-free, reduced fat, reduced cholesterol . I am 61 years old, and never had this happen to me until a couple of months ago. I just had a physical, and my blood is fine. WHat could it be?