From what I've seen, most girls have a little bit of tummy. I think that little tummy is sexy, too! When I was thinner at about 120lbs (I'm 5'6 and 140lbs now) I had a little tummy poochy too. Obviously I still have one, but it looks nice and proportional now that I've filled out better. If I were you, I wouldn't try to get rid of it. You may see it as a 'flaw', but it is part of you and you should love it! <3