Am I a pervert? Please tell me.?

My friends, teachers and family keep calling me a pervert. They say this because I know a lot of sexual slang and terms. I also like to watch tentacle porn... Is that weird? T^T I don't know what to think anymore... I also go to a lot of porn shock sites... Am I a pervert? Also I have never had sexual intercourse but I was diagnosed as a nymphomaniac... I'm a 16 year old girl... I need you answer.