i am a 24 year old guy who has never had sex before.last year in june i started having some abdominal pains and the pains later spread to my testsicles.i consulted a doctor who told me that i had akidney infection that was affectring my urinary syste.i was treated.in december i got the same problem and realeased a yellow discharge in january.i tested negative for sti and std,given medicatrion but i still suffer from testicular pain.what is my proble.my back(lower back) also hurts together with the area surounding the penis.at times the urthra itches.i am worried