Ok I regrettably had a threesome about two months ago. Not long after that I had all of the symptoms I thought was a urinary tract infection, wishfull thinking right, the itching and pain went away but for the past couple of weeks I have been very sore down there, passing it off as just the consequence of having ruff sex with my boyfriend, I was just going to over look it untill about two days ago while having sex the pain was so unbearable I had to stop. I couldn't touch my lower abdomen with out being in excruciating pain and then I started getting serious lower back pain, like some one was stabing me. The pain went on like that for about an hour or so and then was just sore like cramps. I'm scared out of my mind and have an appointment to get tested the begining of next week, but I just want to kind of get a heads up on what it might be. I've looked up symptoms for every kind of std and think that chlamydia is what it is but I just don't know. Please help shed some light if you can. Thanks