I was in that same predicament last week! I had the worst pain at the top of my left shoulder and the left side of my neck. Was banded a week ago and thought I was havin a heart attack! And yes...it is gas, but gas from the air that got into ur body during the Laproscopic Procedure. It will get better. Give it abt 2-3 more days. Ur body has to absorb it. But...U must walk around as much as U can, even if it's just around the house. Walking will speed up the absorption. Hope this helps. U will be better before U know it! Good Luck!