Storytime: Loosing YOUR virginity

Okay so I lost my Virginity recently & I was told that after you loose your virginity, your body has to get used to it and undergoes many changes. I find it hard to believe because I've never really heard of this until now. So if you guys don't mind, can you tell me about how you felt after loosing your Virginty? Did you notice any differences with your body- physically & externally? How did you feel afterwards even over the next couple of weeks?