I actually have the same pain.. I am 3 weeks post op, and I have pain in my upper part of my stomach its almost like in between my chest and the pain feels like its my upper back, its a really weird feeling. I also just got sick for the first time well sorta I kinda got sick but nothing came out it was just all kinds of noises. I had tortilla chips and chili for lunch, it hit me like a brick so I’m not feeling that great right now. :(