I also suffer the same as yourself, after having 4 surgeries that reworked my whole digestive tract. Now I have 2 places where the food gets stopped, the top of my tummy and my bottom. So my body gets confused, the top says go down and the bottom says no go up. When that happens it's very uncomfortable. The result is extreme pain/cramps or really bad nausia, so I have this love/hate relationship with food. As for the all you can eat buffets, they are an accident waiting to happen, I stay away from them. Honestly when I consume anything, it's a gamble, there is no food that is exempt. Anything can cause problems, so for me I just hope for the best at mealtime, I take promethazine for the nausia, it helps some, good luck.