Hello Sir,
It seems as though you might have contracted a sexually transmitted disease. A full workup should be performed, including tests for HIV, syphilis, gonorrhea, chlamydia and other STD's as well. Empiric treatment with doxycycline is a good start, but there is a chance that your infection was not caused by gonococcus. You can try ibuprofen for pain management as long as you have no allergy to it, or are not taking other medications, it is ok for you to combine ibuprofen with antibiotics.
Thanks!
I forgot to mentiuon that after the 1st course of Doxycyclin I did a urine analysis which only gave a slightly elevated WBC count and the VDRL and HIV1/2 came back negative and I didn't have any unprotected sex with my GF after that.