Sayang, ini kena check dengan doctor cepat-cepat ye. Benjolan yang sakit bila ditekan tu bukan benda nak tunggu, especially if it's swollen or getting bigger, boleh jadi banyak sebab, tapi doctor je boleh check properly. A few of us mums pernah ada similar thing, and habis pun after proper check, so jangan worry sangat, tapi do go la, okay? Urgent care or your GP can see you quickly for this. Jangan tahan-tahan, better safe than sorry! All the best, take care of yourself