Could my body be rejecting my breast implants for the second time?

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 capsular contracture after adequate treatment then more aggressive options like Strattice may be warranted to prevent further problems.If you have had radiation treatment as part of your cancer therapy then the risk of chronic capsular contracture may be quite high.  In these cases some patients choose to have the implants removed entirely, and may opt for a tissue-based reconstruction (a flap).If you choose to remove you implants and forego reconstruction altogether keep in mind that you will likely have a suboptimal cosmetic result, but may chose that route if the benefits outweigh the drawbacks.  Best of luck-

I doubt that your body is rejecting the implants, rather it sounds like you are developing a contracture with hard scar tissue, this can be managed reasonably succesfully