Talk to Gynecologist on Vaginal Swollenup

Salam Im so worried My vagina introitus ( the part coming out of vagina from which we pee, i guess we call it introitus) is swollen up and hard and urination is also painfu and that specific part bahir sa agya hai sakht ho kr. Got free from periods today and saw this and i was completely shocked to see. What is the reason? And what happened? Age 23 Nikkahfied ! Had intercourse probably 25 days before.