Vaginal...well, issue.

So me and my SO had sex two nights ago. I wasn’t the wettest but I was still super horny and I did Orgasm. But the thing is, since that night my Vagina has been extremely dry, with no discharge at all, it hurts to wipe but not to pee. And the opening of my Vagina and my Clitoris have BEEN Itching and killing me for two days now. Its so bad I had to go to the bathroom tonight to relieve myself by putting water down there while at dinner with his parents!It’s so embarrassing. I only really know about UTI, Yeast infections, or STDs but I was JUST tested a week ago for any STDs or STIs. What could it be? Could it be because I wasn’t super wet? Because this is different from a yeast infection because there is no discharge or wetness AT ALL.