You do not have symmastia but have large breasts that are too low on the chest wall and downward pointing nipples. You need smaller implants or explantation. The technique I recommend is explantation with lift using The Bellesoma Method. The implants are removed, your breast tissue is reshaped creating upper pole fullness, elevated higher on the chest wall and more medial to increase your cleavage. Vertical scars are avoided, nipple sensation (in 95%) and the ability to breast feed are maintained, if not injured during your previous surgery. Later, fat transfers can be performed if additional volume is desired. Implants are not lifetime devices. 8% fail within the first year and 30% fail within six years. Fat transfers are permanent and incorporated into the body.Best Wishes,Gary Horndeski, M.D.