Symmastia? Over-dissection? What could this be? BA on 21st May. (Photos)

From what you've described it does sound like symmastia which means the breasts are connected in the middle. If this bothers you, then a revision surgery would need to be done to restrict the implants from moving into the centre.

Dear jamieelise,based on your photos, there are no signs of symmastia. I understand your concern and it is quite normal to be concerned about the outcome following a breast augmentation surgery. However, you are still in the very early stages of the healing process.Your will need to be patient at this moment and follow what your surgeon has instructed you to do post operatively.At the early stage of the healing process, the tissues around the implants are still swollen. Once the swelling subsides and the implants drop to their final position, you will be able to see the final result of your breast augmentation surgery.
Daniel Barrett, MD

Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

I am sorry to hear about your concerns after breast surgery.  Although true symmastia is not present,  I do understand your concerns about the breast implants being quite close to one another in the midline.Given that you "love them" when naked or without a bra, it is probably in your best interests to avoid further surgery. However, in the longer term, if you remain concerned about breast implant positioning, you will likely benefit from revisionary breast surgery: bilateral medial breast capsulorraphy (internal suture “repair”) as well as lateral capsulotomy to improve your situation.  
In my practice, having used a variety of “techniques” for correction of symmastia, I find that the most reliable technique involves a 2 layer capsulorrhaphy (internal suture repair of the breast implant pockets along the cleavage area). Often, the use of acellular dermal matrix is helpful also. I have also been pleased with the (at least partial) correction of skin tenting that can be achieved with the use of the acellular dermal matrix.
As mentioned above, it is usually necessary to “open” (reverse capsulotomy) the breast implant pocket laterally (outer breast fold) to allow for positioning of the implant centrally behind the breast mound. This maneuver may also decrease the amount of implant pressure against the medial suture line. 
It may also be necessary to change breast implant profile or volume to help prevent chances of recurrence of breast implant malposition.
This procedure will serve to improve the position of your breast implants on your chest wall, better center the nipple/areola complexes on each breast mound.
I also find that careful attention to postoperative activity restrictions is key to success with this type of surgery and other types of implant malposition revisionary breast surgery.
I hope this helps.