Jennifer - Many people experience a slow or non-existent weight loss during the first three weeks (except for the initial 10-15 pound water loss) because your body is adjusting to the shock of surgery and all the changes. Don't be alarmed, soon the pounds will start to melt away, I know mine did. I am now just over 3 months out and have lost 75+ pounds. Hang on, it will happen. As far as hurting when you drink water, I had that problem as well. I found that if I drank tea, coffee (I know, I know, not supposed to "do" caffeine), or even warm water, that helps it not hurt as much. This too passes. Good luck with your journey and try to be patient.