Infected Vagina???

I'm 14 and I've never had sex but the past two days I've had a bit of discharge and my vagina seems smelly, really itchy, and I bit sore if I touch it. Could this be an infection? I've looked up the symptoms and a lot of people say it could be an infection and that you should consult a doctor. However, I do not want to go to my doctor because that means I'll have to tell my mum about it and I definetly don't want to do that! I'm not very open with my mum about these kind of things so I'm scared to tell her that I might need to go to the doctor. Plus, I'm a bit embarrassed to show the doctor my private parts anyway! :/ Does anyone know anything I could do to stop my vagina being smelly, itchy and sore?! This may be TMI but I really need advice! I know it can't be from sex because I'm a virgin... HELP!