Nipple pain

My 6 month old has 6 teeth now. She’s been biting me while breastfeeding. Not every time but a couple times. Definitely hurts lol but she’s also had a cold so she’s been feeding a lot more than usual. I’m not sure if any of it could be the reason but my nipples have been hurting really bad for a few days when she feeds. Does anybody know maybe why they could be hurting so bad? If the cold or the teething could have something to do with it? I don’t have any cuts or bleeding from the biting but like I said it’s only been a couple times. TIA