High profile 315cc textured shaped implant placed 2022 to correct mild sagging and grade 1 tuberous breasts Happy with look and shape, unhappy with lack of movement and shape when lying on back. Can I swap out my shaped implants for round implants? Considerations, will not do a lift happy with sagging, have hypertronic scaring from incisions, firm scar tissues forming base of breast, numb left nipple"