A GYNO EXAM !?!?!?!?!?!? HELP !?

Ok well, im 15, ive never been to a gynecolegist and never heard of it until now, i read that the age you should go for your first one should be 13-15, i dont think my mom has ever been, and im scared to go if i have to ! I dont want some docter up in my ! I dont even want to undress! Ive never been naked infront of ANYONE except my mom when i was younger but that doesnt count, anyway, IM PETRIFIED! what do i do !? HELP im scared to go, but im scared if i dont go, i could have problems, or get sick or something bad, omg im freaking out HELP ME PLEASE !!!