Don't fret about it PJess. At 16 days, you are just passing the peak of swelling! You need to keep in mind that this surgery was traumatic to your stomach, and listen to your body. For at least the next few months, you will need to keep your meals small and frequent.
Very gradually, your stomach will begin to allow you to eat bigger meals -- but don't try to push it -- it just happens on its own very slowly. I can tell you from tons of personal experience, you do NOT want to try to overfill it.