Strange pain!!! (HELP)

Okay so, this will be hard to explain. But do you ever have random pain somewhere on your body, like a pulsing, one second it's gone and then comes back in a rythm pain? If that makes sense.. Anyway I've been having that on my right vagina lip, more towards the top where the pubic bone is. It'll go away for a few hours but then start pulsing every other second again! It doesn't hurt THAT bad, Just strange and slightly annoying. Anyone know if this is normal?