Removing breast implants after a subfascial breast augmentation may have some implications for the fascia, but the extent of these implications can vary based on individual factors and the specifics of the surgery. Here's some information to consider:
1.) Fascial Disruption: Subfascial breast...
According to your photos, it does indeed appear that you have tuberous breasts but always worth seeing a board certified plastic surgeon for a consultation on your options.
The smallest size is around 125 cc's depending upon which company your surgeon uses. Yes, you can go smaller, just enough to add a cup increase in size if you want. Ask to try on both sizes so you can get an idea of the difference.