Feel like I have a flat breast. Can anything be done to fix it? (photo)

All breasts are different left to right before and after any surgery. There may have been some differences in shape, nipple position pre op.

The implant pockets may have changed shape and position after surgery. As such, a revision may be indicated for better symmetry. Remember, they will never be 100% identical.

Further discussion with your/a plastic surgeon is recommended.

Yes, it is there, definitely, photos show it well. Breast tissue on that side is probably not evenly distributed over the implant. Implants may be asymmetrically positioned (one more centralized than the other). Anatomically shaped implants which have rotated may also create that appearance. Re-distributing breast tissue in a secondary operation may correct that but surgical disruption of breast gland required. Fat transfer is also a possible solution but would introduce volume asymmetry unless done bilaterally. Fixing that situation requires good physical exam to determine the cause(s).