Do you think that 500cc implants are too big for me?

i am 5'5 147 pound heavy bone girl,, rib cage is 32 inches and i am 34b, i am having breast augmentation under the muscle in 2 week and i will like to know if they will look to big in a girl like me,, and also i am a little scared to go under anesthesia,,, i never being sleep and also,, how painful is the surgery under the muscle after recovery and how long it will take you to recover,,, please i will like to know,, thanks so much