I haven’t hap lipo-modelling but have had surgery on my ‘healthy’ breast (as you know since we share a PS) and was told that my next mammo would look different, so I’m half expecting to get recalled when that happens (sometime next year as mine are 2 yearly). The most likely explanation is scar tissue or fat necrosis, but it is definitely best to get it checked out. Sorry I can’t offer any real help, but will be thinking of you lots x