I abstained from sex for a number of years, until recently I had a one night stand with a guy. We had protected vaginal sex (unprotected stimulation but did not insert), and unprotected oral. About 3 weeks later, I woke up one morning feeling nauseous, vomited, then came flu-like symptoms. The fever stuck around for a few days, and my joints began to hurt. As the week went on, the joint pain increased. It was so painful, I could hardly move. My fingers and feet were swollen. I was on antibiotics and pain killers, but the pain did not subside. After two days of steroids, I began to recover. The flu/joint pain lasted for about 2 weeks.
6 weeks after the one night stand, I went to get tested for HIV, as the doctor suggested that the episode sounded like HIV symptoms. The rapid HIV test came back negative. However, I came back positive with Chlamydia.
I later checked with the guy, whether he was tested - he said he get tested twice a year and everything came back negative recently. (I'm not sure if he had his throat checked out for Chlamydia, which I might have caught it from him by receiving oral sex if he has it. I didn't specify when I asked.) What confuses me however, is that I was on antibiotics (same dosage treatment for Chlamydia) just 2 weeks after having sex. I took the antibiotics longer than what's needed to treat for Chlamydia as well. However, I was still tested positive?
My joint pain seemed to be reactive arthritis, which could possibly be from the Chlamydia infection. However, I'm almost near my 3 months window, so will get retested for HIV soon. I'm worried that it might be HIV, even though the guy swears he's negative. Can Chlamydia cause such a reaction with joint pain? And is there a way to be sure, during this time to rule out HIV? I don't want to wait for another 3 months, I know retesting 6 months from the incident would be more definite, but I would love to know ASAP!