Hello,
Such discharge can be due to yeast infection or candidiasis. Other than that it can be due to STD’s. The best tests involved in the diagnosis of candida are scrapping or swab examination of the scrapings after KOH mounting.The other test that can be done is fungal culture of the scrapings from the tongue of the vaginal swabs.
Try to avoid wearing tight underwear and pants. Wear cotton underwear as much as possible and maintain proper hygiene.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
if you are i believe 16 and older you can go alone and keep it confidential. But try going to the GYN alone