How can I visit a gyno without my parents finding out I've had sex?

I recently had sex with a guy, and now I suffer extreme vaginal itching and white cottage cheese-ish discharge. This is driving me crazy! I'm afraid it might be Cervicitis, but I'm not sure. Also, I can't ask my parents to take me to a doctor because there is no way I'm telling them I've had sex! Is this even sex-related? PLEASE answer my question because I'm tired of sleepless nights worrying what this is. Please respond! Thank you so much!