I am almost 10 weeks post op, and I have noticed the pain and nausea after eating as well. I have started keeping a food journal so I can see if there is a pattern. I have discovered that too much bread or pasta (more than once a week) creates severe pain, and today I experienced it again, the only new food I introduced today was stuffed mushrooms (I have had mushrooms sliced or diced in things, but maybe the whole mushroom is too much). Anyway, I was worried about obstructions, but after reducing my intake of bread and pasta, the pain goes away. Good luck!