For the last week or so I've been feeling some really sharp needle type poking pains under my right vaginal lip... I'm not sure if it has to do with a pinched nerve or something but it comes and goes it only lasts a few seconds but it happens between two and three times a day it will stop me in my tracks because it feels like someone is poking me from the inside out with the tip of a sharp knife or needle I need to know what this is... Anyone can tell me what this is?