Sorry to hear that ~ I also knew someone who just experience that pain. I think base on my researched before it is Mastitis or Breast Engorgement. There is a hard part and pain from swollen engorge breasts. And the only thing to relieve the pain is to pump the milk away.
Hi. Hoping that moms out there are doing fine. Just to share, my worst moment during breastfeeding is when it's my first time; the time that i'm still convincing my baby to latch in my breast, and when he tried, the pain is really there. It hurts so bad! But after several weeks, i already had my best moments with my child during breastfeeding. We can already play with each other at the same time. There's no pain anymore, and i am so glad that my baby was already satisfied.