Thanks for your question and pictures. Despite having a 510cc, I agree that you could benefit from larger implants to fill lack of upper pole fullness. I would suggest a smooth, silicone gel, moderate plus profile in the range of 750 cc.Search for a surgeon certified by the American Board of...
What you are describing sounds like a capsular contracture, which is due to a thickening/tightening of the scar capsule that surrounds breast implants. "Rejection" refers to an immune response to a foreign protein, and is seen in transplants, etc. If you have a recurrence of your...
What you should do depends on your level of dissatisfaction. Your result looks nice, symmetric, no contracture, rippling, malposition, or other issues. Some women NEED to have more surgery because of these or other complications. Many women desire the shape and proportion you...