Okay, so I lost my virginity about 3 weeks ago and while I was having protected sex the guy had to stop in the middle because he was experiencing an excruciating burning. I was suspicious, but I dismissed it and we stopped. But 2 days ago I started getting itchy down there, at first it was just annoying. But now my vagina seems irritated and swollen,and definitely still itchy. It's also very red and sore, but there is no abnormal discharge or anything. No pain urinating. I am just really really scared that it is an STD and I'm going to have to deal with it for the rest of my life! If anyone can help it is greatly appreciated.