Masturbation

I’m 18, and I’ve never had sex. (idk if that helps) when I masturbate I feel nothing. There’s no pain or pleasure....just nothing. I don’t know if there’s something wrong with me, or maybe my body just knows it’s me so it doesn’t react to it. I get horny and wet, but when I actually do stuff it’s frustrating cause nothing happens. I have a vibrator, and sometimes I use my fingers. I don’t know what to do...

Edit: I’m on birth control as well. I don’t know if that could be the problem