It could be from the chlamydia, or it could be another problem you have. If it doesn't clear up by the time you're done with the doxy, follow up with your doctor.
It could be anything from a kidney stone/kidney infection to a hernia to IBS to appendicitis, or a host of other things.
If you get a fever, vomiting, the pain worsens, or you get any bloating, contact your doctor immediately, or go to an emergency room.
Thank you so much auntiejessi. Yes HIV tested negative. Only rectal chlamydia. The pain only lasted two days. While in those two days I just felt slight pain for a few minutes in the right lower abdomen. I never felt this pain before. I went to a public sexual clinic today and the nurse was so unprofessional. When I asked whether this pain is related to chlamydia she said you're not a woman. So the question is simple: would rectal chlamydia in men would cause pain in right lower abdomen? If yes why is that and what could be the complications? I don't have any other symptoms other than the pain for two days. thanks a lot. This is my first ever STD I'm really worried. Could it be LGV?