vaginal burning, pain, dry, brown discharge?

hi i feel dumb posting here but idk if gyn should be seen. i have had burningpain for 2.5 weeks on and off. in vagina not vulva. some discharge looks very light brown, then yesterday and today its dark brown but am not due for period for 1 week. i am a virgin so not pregnant or std. i got yeast infection cream but didnt help. what should i do