Health....

So i had sex with my man a couple of days ago and i was super dry and we kept going and I eventually had to stop because it started hurting a lot and when i peed afterwards it burned soo bad omg just thinking about it makes me cringe honestly. And i know that happened because i was super dry and around my vag was super swollen. And after that whenever i peed until today it itches a bit and when i wipe myself it almost feels like a relief idk because i guess i have to itch but i don’t and when i wipe it feels better i guess ( hard to explain). And right now i went to pee and I decided to check my vag to see if there was anything going on and I noticed a lot of white discharge all over and im not sure if its always like that but it kinda freaked me out. Could it be a yeast infection? Or is there always white discharge on our vagina.. that still doesnt explain the itching though. Anyone gone through this before? Help a girl out!