last night my boyfriend and I had sex first time in about 2 weeks. during the intimacy, my vagina…

last night my boyfriend and I had sex first time in about 2 weeks. during the intimacy, my vagina and clit started burning pretty bad. he stopped and I tried closing my legs but it burned even more. that's never happened before. I don't have any STD, UTI's or any other infections because I went to the hospital a few days ago and they tested me for all that. Should I be concerned?