Hiya. I am sexually active and Had sex last Friday. He was rubbing my clit quite a lot and in the next two days it began to hurt as I finish urinating. Sometimes the pain will stay for a while when I am walking around. I have also have an intense pain in the bottom of my back. Two weeks ago I got a Sexual screening for chlamydia and gohnaria which came back today as all negative. I am still getting the pain although yesterday it went and started fading but today it has came back. Any clues as to what might be wrong? Thank you