My stomach was also very vocal so I wouldnt worry about that. As far as being able to drink large amounts, yes. When the band is put in, there is no restriction at all, other than any swelling that occurs due to the band. So until you get that first fill, your restriction will be zero. I also could drink whatever amount I wanted without problem, until that first fill. In fact, the way that my doc tested me afterwards was to have me drink a small dixie cup of water quickly in the waiting room. I felt it build up to the point that it felt like I could vomit, but then several seconds later it was gone. That meant I finally had some restriction, but not enough to keep fluids from draining quick. Hope this helps!