I had what I thought was a stall at three weeks too. The scale didn't budge until the end of the week, and I was weighing daily. So, it's pretty normal for the body to take a little breather at three weeks post-op. I'm seven months post-op and just broke a stall I've had since Christmas. It feels so good to see the scale moving again. It's interesting to see how the brain and stomach work together, i.e., the effects of stress.