CHEWING on my nipples

Hi mamas!

My LO is 10mo old and has 4 teeth (2 top and bottom) and 2 more coming in.

The past two days while breastfeeding it's like he's chewing my nipples all of a sudden, as if he's just normally latched and sucking, but with teeth.

It's so painful and he's not biting on purpose, he seems to be trying to feed like normal.

Does it get better? I wanted to make it to a year at least but oh my gosh this hurts so much!