The inside of my vagina has been itching 1 time every week (it's been 2 weeks since the itching started). The inside of my vagina lips get easily itchy and when i itch it, it makes its red and burns where the itch is. Also my discharge has been weird. I have irregular periods due to my birth control, but It doesn't burn when i pee or anything but I'm worried maybe it's an STD.