I had my band in on Dec 20th. Everything seemed normal, meaning it was difficult to eat a small amount of yogurt, lots of gas and pain. I swore I could feel exactly where the band was around my stomach. Then a couple days ago I woke up and I have no pain at all (except on the large incision). No pain when I eat. I can't feel the band. It's like I never got one. Is this normal/common?