Don't be scared darlin sounds to me like you need to go to your doctor and ask for a swob to be taken, your symptoms sound more like an infection to me iv had these symptoms and it turned out to be bacterial vaginosus I might be wrong but hopefully that is what it is and it can be treated with antibiotics please don't think the worst until youv seen your doctor xx

Hiya hunny, ive had BV and its the first thing the gp will want to rule out so i would book appointment asap and get seen as its simply  a swab and some antibiotics and if the swab comes back clear at least you have started the ball rolling into finding out what is causing it xx