I am also having trouble knowing what the "green zone" is. I also have to make myself stop eating rather than feeling "full". And some weeks, like last, I can only eat a small amount and stay full. And things that normally go down, come up or get stuck. During these times of it comes up, I get a slimy substance too. I've read here that's due to eating to fast or not chewing enough? Then this week, I am starving and feel like I have no restriction. The fluctuation is strange week to week. I'm glad to know ok not the only one, but it's frustrating bc since my surgery July 2011, I've lat only 48. 10 of those pounds was in the Pre-op diet phase. And since Feb.2012 I've gained 2 pounds. I'm due for another fill the first week of May and I too am not sure of I need it. I do need to learn to eat slower/smaller bites. I also don't drink enough water maybe. I'm drinking about 30oz a day. So, I need to try and do better and see if that helps, but I doubt it will change the fluctuation!