I am 16 days post op and I had the same exact thing happen to me when I went from liquids to pureed/ soft food. I found that I longer feel full when I've had enough food it's just a really bad pain in the middle of my chest. I also feel it if I ate to fast or swallowed too much air. I've found now that burping eases the pain quicker. Sent from my SM-G965U using BariatricPal mobile app