so for the past 2 days, ive been experiencing itching on my vulva. it doesnt burn when i pee or anything. kind of like dryness itching? maybe irritated? i checked put there a minor roughness, like cracks ( if that makes sense). ive been having protected sex at ALL times. so it is unlikely an sti. is it possible if its a yeast infection? please help. did anyone experience the same thing?