One week post op I wasn't hungry at all most the time and lost 6lbs, the following week I had no restriction at all and gained 3lbs. I started drinking protein shakes again at breakfast, and sometimes for lunch (but not always) with a normal meal at dinner, and started walking. Did a lot of walking that week and I lost 9lbs in one week. I weigh myself weekly. So I make sure I get my walks in for the week because if I don't I feel like I'm gonna gain weight lol.. I don't eat what I'm suppose to either. Portion sizes I mean. But I do eat healthy. I am 3 weeks post op and definitely have no restriction, but I can go hours before feeling hungry again. Sometimes I'll eat dinner and in an hour my stomach starts growling, but I know I'm not hungry, so I don't eat, I just drink, drink and drink and it goes away. As long as you're eating healthy and getting exercise in, I'm sure you'll lose. That's what I'm doing. Everyone is different tho..but you should give it a try. I usually walk (fast paced) for 30-45 minutes a day..I had my post op appt on Friday and asked when I'll be getting a fill, and he told me 4-5 weeks, my mouth just dropped! Lol that's 7-8 weeks post op..but I think I'm doing ok without the fill, but as long as I get my walking in. I usually get satisfied/full with 1 1/2 to 2 cups of food, with the exception of a salad, I can eat a pretty big salad . You'll be ok, just stick to your protein and veggies. Do you by any chance count your calories? I feel that has been a BIG part of my success so far, to be able to keep track of my caloric intake..