Breastfeeding hurting me now molars have started appearing

[ArlingtonStringham]

My 17 month old DS is still bfing, I am lucky enough to have had it pretty easy so far, no tongue ties or mastitis and no plans to stop etc. however since his first bottom molars have come in over the last few weeks, feeding is become pretty uncomfortable for me, and he's noticeably unlatching, biting and messing about more at the breast during feeds.

Is this something others have found and I just need to wait for him to adjust his latch to accommodate the new teeth or is it likely to only be like this from now on?