I gained 56 pounds while pregnant....lovely....and have lost 63 pounds. Which I am really excited about. The only thing I want to 'tighten' up still is my stomach. I'm working out, and the stretch marks have faded. But underneath my belly button, the skin is still 'loose'...like when I sit down, it almost looks wrinkley or something. Assuming this is not going away, and that's fine- what have you guys found??