Lowest sustainable weight?

I have been at the same weight (with daily fluctuations up and down) for two months now despite increased exercise and reasonable eating. I'm beginning to wonder if this is my lowest sustainable weight. It's as if my body prefers this weight. My brain does not prefer this weight because it's 14 lbs higher than my lowest weight since my band surgery. But I'm happy with my appearance (except for the thick middle, which I had even at my lowest weight), I'm wearing the same clothes despite the additional weight and I feel great. Should I put my energy into accepting this instead of struggling with it?