Could be a lot of things:
- At the moment you're losing more in the rest of your body than your waist so it sticks out more.
- The density of the fat loss in your waist is less but it's still roughly the same size. Basically it's become jigglier.
- You might have lost more visceral fat (the fat around your organs) then subcutaneous fat (the fat underneath your skin). So the width is smaller but you're still seeing the protrusion.
- Could be the effects of your diet. If you're eating foods that have more volume but less calories your bell has to digest that! Also, like others have said it could be from more fiber-rich foods (like beans, salads, whole grains etc).
Basically, if you're losing weight I wouldn't worry about it too much. I've experienced it too and normally it's just a matter of being at a bit of an "awkward stage" when it comes to your weight loss. Eventually with further loss your stomach will shrink too. Unfortunately we can't pick and choose where those loses come from.
