So I just showered and had a new soap that I've never used before. My vagina was burning like it was cut somehow, but its not. It was burning pretty bad.. an hour later I went to pee, and it burned even more... i wake up pretty much every morning with lower back pain (pain is always on my left and right side above my hips, never in the middle of my back) but then it goes away.. could I have a UTI? If so, what can I do for the burning ?