Left boob on a shelf- tight lower pole skin (Photo)

What you have is a version of double bubble. If the lower breast pulls upward when you flex your pectoral muscle, then it is caused by adherence of the cut muscle. This is called animation deformity. If that is the issue then it can be corrected by converting to the split muscle plane or subfascial with re-attachment of the muscle.

Dear Fantastic394693,
I understand your concern. However, without a proper assessment, it would be difficult to determine what is wrong. It is best that you visit your plastic surgeon for further assessment or ask for a second opinion. Only after a thorough examination, you can get proper recommendations and advice.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

Your left implant has not completely settled down and so appears tight. Try oral Accolate and external ultrasound treatments to see if your tissue with soften and let the implant drop. Otherwise, you will need surgery to open the capsule.

Why did you have your implants taken out and then replaced?
Doing so well, cost the capsule to shrink and distort the shape of your breast.
It’s not a good idea to remove implants if you want to have a breast augmentation.
The implants need to be left in place.
I would not expect someone to be able to remove breast implant, and then have a re-augmentation with normal results.
Best,
Mats Hagstrom MD