Am scardd can someone help me?

okay so i was getting in the shower when i saw blood in my under so am like okay it me period. but then when am getting ready to go to sleep am laying in my bed and boom my Virgina just starts hurting so bad its not like crap hurting its like after u have for the first time that's how it felt and am a virgin whats going on because when i went to pee this Morning it was no blood and and my Virgina was just a little swollen and it still kinda hurt what is happen someone plz help and ps i already stared my period a year and a half ago. and its like a pain like something is not in its place or something