What's goin on here?

So my weight has been consistent over the past month, but today I feel self-conscious about the way I'm looking.  I guess I'm expecting results faster than they are coming in :(  This sucks, because I work my ass off, and changed my diet; yet it sometimes seems like my tummy is expanding, not shaping up.  My arms, chest, and legs, on the other hand, are toning up nicely, and I'm more than happy with progress in those areas.  I can't wait to start running again when the weather warms up, at least a couple days a week.  That would burn off some of the excess junk I'm carrying around.