What Could Cause Burning,itching And Discomfort In Inner Labia?

hi, my name is katie.
I am 14 years old and am very confused. I havent had my period yet so this concerns me. I am having burning, itching, and discomfert in my vaginal area. I think they are called the inner Labia? i dont know. But i am an avid biker and am soon doing a tour thats 150 miles long and it hurts very bad. I get nervouse when i try to talk to my mom but i havent told her anything yet. should i go see a gynicologest? Also the inner lips( inner labia?) hang past the outer lips. could it just be irritated? im soo confused!!