Wa'alaikum assalam! Oh tu Montgomery glands je, sayang, completely normal! Semua orang ada, cuma lebih visible bila pregnant or breastfeeding sebab hormones. A few of my mum friends were worried about the same thing, tapi doctor kata it's just your body preparing for nursing, so don't worry lah. Kalau tiba-tiba jadi banyak sangat or ada rasa sakit, boleh cek dengan doctor untuk peace of mind saja.