Have I got BV??

I've noticed that my vaginal discharge has been abit smelly lately.. I do masturbate quite often but anyway, it's a kind of white runny discharge but really smells and I'm getting abit worried that I have BV (bacterial vaginosis) I'm only 13 so I can't tell my mum cos that's abit of an awkward topic and we don't speak like that so I can't come out and say oh mum my discharge smells..is there anyway I can treat it myself?? if so any comments would be well appreciated