Hi. I'm now 2 weeks post op and started to lose again. I didn't lose much the second week of optifast or the week after the surgery. Like you said, your body goes into survival mode and holds onto whatever it can. Was gutted though. It's started moving again so I'm happy. Took some before and after pics, 3 weeks apart, and the difference in my face is great. Although I don't see it looking in the mirror yet, it shows in pictures.