So I lost 55 pounds this year. (20lbs of lingering baby weight, and then some). DS is 20 months old and I'm down about 35 pounds below my pre-pregnancy weight. I feel great about my body except for my stomach. I run a lot, but that's really my only exercise right now. My stomach is really loose and saggy.

Will doing core work make it better? I was hoping it would be better with the weight loss, but my stomach is just smaller. Is it possible to make it less loose and saggy if I focus on core work and toning up? Is it just a battle scar from pregnancy?