I know how you feel. I swear, if I ever make goal, I'll have NO BUTT! I used to want to get to a size 4, but I realize that, at this point in my life (44 yo and post 3 kids/2 c-sections), I'd have to sacrifice my whole lower body to get there. My middle fat is the last to go and I, too, seem to get bigger in the middle when I'm in a losing mode. I think it's just that my limbs are getting smaller and it just looks that way. The trick is to just keep going without losing momentum.
I'm not much help here, I know. The only thing that really helps my middle is that thing we can't talk about here...'d'. Also, pilates is something that, when I do it regularly (which is hard, since I find it
), helps moreso than regular crunches and the like. I've read several posts by apples that state that non-traditional ab-work does the trick for them...ie stability ball, functional fitness, pilates, etc.
Good luck!