Aw momsh, 8 months in at may pain pa, that's tough talaga! Could be latch na nag-shift (babies change their suck as they grow), or sometimes teething pressure makes them pull differently, or your skin might just be more sensitive na from months of nursing, kaya I'd really suggest checking in with your OB or a lactation consultant to rule out anything like thrush or tissue damage. In the meantime, a few of us tried Mama's Choice Nipple Cream (it's safe while breastfeeding and sobrang effective) and applying warm compress before feeds to ease the tension. Hoping it gets better soon, you're doing amazing na rin na pure BF this long!