Numbness in vagina??

Okay, so let’s just start off by saying, I’m 15, so on with the “problem”, the inside my vagina is completely numb, it’s always been like this, I can feel the pressure of something being inside it, but I can’t actually feel let’s say pain/pleasure/that it’s there, for example let’s say, Another person or my self had their fingers inside me or something along that lines and they moved their fingers a bit, I can feel a slight bit of pressure against the walls but other than that, nothing. I’m trying to figure out, how to explain this in a way that might give a little more detail??. Right, let’s say you got a filling in your tooth and your cheek was still numb, you bit your cheek/ you’re poking around with your tongue, you can feel that you Bit your cheek/that your tongue is there, but nothing more, this isnt the best example But it’s kind of the best way I can explain. Is their something medically wrong or is this a common thing? I have googled this (yes, I know, a poor choice) and it’s told me a whole load of bullshit (I hope)