Now that you are in maintenance, you are now in the "rest of your life" stage. The beauty of all the hard work you have done to change your eating habits to a healthy new lifestyle is that you can now CHOOSE to have that occasional piece of banana cake or cheesecake with NO GUILT, NO LABELING OF CHEATING, NO BEATING YOURSELF UP. When you plan each day with good, whole, nutritious foods, there is room in your life now for a little "junk" (if you want it). Because you have done it right, these foods don't have power over you any more. YOU control THEM. That is what is so different than your life pre-surgery. I find that my desire for junk just isn't there nearly as much when I consider what my other choices are to give my body nutrition. Sure, I had to learn to play a lot of head games--still do. When I'm particularly tempted, but REALLY don't want the particular piece of temptation, I say to myself, "I don't eat that anymore." For me, the more I've said it to myself over the past 4 years, the more I feel it has helped me to take that pause and really evaulate whether I want it.
You said you've been hungrier the past few days--eating those simple, processed carbs turns on the hunger hormones big time for many of us. The more you eat the more you want.
"Not wanting to gain an ounce" is not realistic or healthy thinking. I know you know that. Establishing a 5-pound bounce range is very realistic. Whether or not we have had bari surgery, our bodies naturally vary in weight week-to-week. IT IS VERY OK. You are still learning and practicing to achieve that TOTAL CONFIDENCE in yourself that you can weigh once a week for the rest of your life and maintain your 5-pound range. Living in fear over weight regain is no way to live.
Remember and Celebrate your awesome achievements. You don't have to "hate" maintenance. It doesn't have to be stressful. You are free, and that is such a gift that we sometimes lose sight of.