Very sore clit after getting fingered

I've never had this happen to me before. My boyfriend fingered me (like rubbed my clit not actual fingering) twice yesterday for like 5-10 min each with around 30 minutes in between, and next time he tried to do it again (about 1 hour later) my clit was so painful/sore that he couldn't even apply pressure without me wincing. We waited 45 minutes and he tried to eat me out and even that hurt. I've never ever had this happen before and he's done the same thing plenty of times with no issue. His fingernails were clipped, hands were clean, and he wasn't going that hard. Should I be worried?