constant vaginal irritation

I am 17 years old, a virgin, and ever since the age of about 12/13 I've had a slight irritation around my pelvic area. It's not actually my vagina itching, just that area. It's never been painful. I know I've got a tendency towards itches. I've got sensitive nerves. So I'm wondering if this is just another itch I get all the time or if this is something I should actually worry about and possibly go see a doctor for.