Lap Band and PCOS

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I'm 28 months post op. I've only cleared a 60 lbs loss in over 2 years with the band. Fresh out if post op, my band was always unstable with restriction. I'd have it, then wouldn't. My longest green zone was 6 months. I got prego one year post op but it ended in ectopic. Ever since that emergency surgery, my band has stopped working. It dilated my pouch for some reason. Now the smallest things will enflate my pouch. I'm always needing to go in and get unfilled then filled again. But my fills don't last long and restriction goes away. Post ectopic I have no lost any weight. It's been a year now. I can't help but think that my PCOS and the hormone probs that come with it is causing my band to not work how it should. Anyone experience this? I'm still eating low carb high pro. My call are about 1000-1200. I do cross fit 3xs a week and moderate exercise the other days of the week. My weight will not budge. I even starting taking belviq to help get me going... but it's not working to supreme my hungry or sweet cravings. I feel like my pcos is really holding me back. I'm getting really discouraged!!