Thanks for the question. With the limited photos, ( a side picture would be helpful) you may be a candidate for liposuction. Your abdominal skin quality appears to be good but I cannot determine from the photo if you have a muscle separation. If you do in fact have a muscle separation, that would require a muscle tightening to get a flat tummy. Liposuction does not change the abdominal muscles and cannot correct a muscle separation.
Thanks for the question. Unfortunately, gynecomastia surgery cannot be reversed. Perhaps a scar revision my improve your result. I recommend consultation with a board certified plastic surgeon to evaluate.
Thanks for the question. A tummy tuck, BBL and liposuction will typically take 4-6 hours depending on the number of liposuction areas you are having treated. The more areas being treated the longer the procedure. The areas typically treated with liposuction and a BBL are the waist and lower back which will improve the overall BBL result. A tummy tuck and BBL are typically done under general anesthesia. Liposuction can be done under local anesthesia but in combination with the BBL and tummy tuck it should be done under general anesthesia.