I'm a 16 year old girl..
I have started getting yellowish green vaginal discharge. I was having this weird itching also.
I have never had sex ! I'm a virgin. Just oral stuff.
I searched on the internet about it.. they said it is a symptom of STI.
Please tell me what should I do about this!
I'm really scared..

STDs, including HPV and HIV, can be spread through oral sex. Here's info from the CDC: Oral Sex and HIV Risk | Factsheets | CDC HIV/AIDS

"Oral stuff" is not safe.

You need to see a Physician to get a diagnosis and treatment.

Does your partner have any symptoms of any STD?