Depends on Surgery. This varies on the placement (over or under the muscle) and size of the implants as well as the individuals response to pain.
No . Breast augmentation is not very painful- especially if the implants are placed above the muscle- recovery time is usually 2-4 days.
Occasionally. Once in a while a patient will find it so for a few days. Asps plastic surgeons have techniques that make it very tolerable for most.