How Do you know if you are a nymphomaniac?

I’ve been wondering this for a while. Ever since I was 5 i’ve had severe sexual desires and urges. I was never touched in the wrong way as a child and I never saw pornographic movies or images, But i knew I wanted things that were bad. When I finally had sexual contact the urges got worse and they’ve gotten worse. Sometimes my boyfriend can’t keep up with my sexual needs. Its good and bad in a way. Am I a Nympho?