I am three weeks out and have noticed that initially, my fullness came as hiccups. My doctor explained that hunger and fullness would initially appear in different ways in your body. So long as you are feeding your body, you will be fine. After surgery, your stomach will be stiff. It was cut down, so as it heals, it will be stiff. When your stomach starts to grumble, it creates stomach pains from gas. I am having this difficulty now. Gas-X remains my friend for times such as these. But, remember, don't eat to be full. Eat to be satisfied, an adjustment that will take some time to get used to. Be patient with yourself, and you will get there.