My boyfriend and I have been together for a year now. He has mad many sex partners previous to me, and he was my first. Over the summer (we live in different states, go to college together) he admitted to talking to other girls, but denied sleeping with them. Since reuniting in I have experienced severe lower back pain that comes and goes. Also am having more discharge than normal. Have been treated for a "suspected UTI" and he is also having very severe lower back pain. I was also diagnosed with strain B strep about a month ago and took medicine accordingly (probably unrelated). However he and I both are also experiencing headaches, and he (Ive noticed) pees more often? And I recently have discomfort while having sex.