My breasts are a c-cup. I've always been a busted girl, i remember how perky they were and nicely shaped. due to weight loss that was 2 years ago, i now suffer from kind of saggy breasts and umm kind of empty? in some areas in my breasts. mostly in the cleavage area. if i gain weight and maintained a healthy diet, will i get them back the way they were? note that i gain and lose weight really really fast. if not, is there a safe alternative that doesn't required getting under the knife??