I had a similar experience. I have a 10 cm band. My first fill they gave me 3cc. I was still very hungry. The second fill they gave me 2cc so I was up to 5cc. I still didn't feel a lot of restriction but if I ate too fast, I would throw-up. Still hungry I went for the 3rd fill. They gave me 1cc bringing the total to 6cc. So far so good. Well, good luck to you. I was told that it takes at least 3 tries to find the "sweet spot".
Elise