Oh my goodness! I thought I was the only one that had those "chest bubbles". Everyone I talked to who had LB had no idea what I was talking about. I tried tums and other antacids but nothing worked. For awhile I wondered if I made a mistake getting the LB. But from my expirience it went away about 2-3 weeks after surgery. I never figured out what was causing but was so glad when it went away. Good Luck!