27, Mom of 2, 34A, 5'6 136 lbs breast augmentation

In a nutshell my old crease was visible my implants shifted downward. I noticed a dent in my boob within the first month after my first surgery, and I was told it was still early I have to give it a year it was still there after a year so I went for my revision 11/05/2019 and I still notice my dent. Pro is they look so much better now, con I hate the dent in my underboob. I hate that I had to do new incision sites! I wish I would’ve done the crease incision to begin with, I did armpit incisions due to being keloid prone the first surgery just to end up having to do the crease for my revision anyways. I can’t get an exact answer on why it is there other than it happens with thinner women, I had it at 178lbs as well 140lbs so I know weight is irrelevant . I just wish I knew the cause of this dent

My underboob is starting to look better still have hope. It's frustrating but I am giving it a year before I stress my self out about what looks like a muscle deformity.