Stopped BFing, when do boobs return to normal?

[RidingMyBike]

Stopped BFing three weeks ago. Boobs still feel quite full and heavy and still seem to be the same size (I was AA cup before getting pregnant, now DD).

Do they go back to how they were or is this it now? I fed for 2.7 years but the last 18 months of that were only once or twice a day.