Help! I can see the flat top of my silicone implants?
I think that what you are seeing is a depression in the implant caused by your tissue being thin and loose. It is difficult to tell from your photos and you probably will be best served to be seen by your surgeon who can look at you in multiple different positions. There are multiple options to correct your situation including a larger implant volume or a thicker type of gel implant. Allergan also has a new implant called the Inspira that is filled to 90% of what the implant will hold compared to 75% for their older style implants.
I can see your flat spot in your photo, but I can not see your breast shape, position, and where the implant is lying with these limited views. More standard breast photos might help. I wonder if your implant has slid down and laterally with the bottoming out you mentioned. If so the center of the implant may no longer be covered by muscle and more visible through the thin skin. If so you may need the bottoming out problem fixed. Discuss with your surgeon. Good luck.