I've never gotten such a large fill at one time but I would say you probably have some swelling from the fill. You should always drinking slowly and in small amount after a fill because of the inflammation caused by the fill. Take it easy and once you start to add soft foods, go really slow. especially since you got such a large fill, your band is going to be much different when you eat. If after a day or two you are still having problems just getting your Protein Shakes down then you def need to go in and have them take some out. Good luck.