I am a white 46 year old, I have had three children/pregnancies. Approximately five years ago I had lipo on buttocks, hips, inner and outer thighs. Abdominal plasticity with lipo. Looked amazing afterwards, very pleased with the outcome. Recently I have lost about 20lbs. My question is, what options do I have to correct this? Is CO2 an option. In general, what do plastic surgeons suggest or would be the go to solution? Thanks in advanced.