Once checked for chylmidia and gonhrea, if negative and still have pain you have contracted trichomoniasis in women it called vaginitis...std... metronidazole 500mg and levoquin 500mg... it is not detectable in men and if you look up merk manual which is similar to control disease center in stead merk is world wide it states trichomoniasis causes epididmytis . that said take those antibiotic and do a epididmytis magnesium flush to flush all the bacteria waste trapped in side your balls good luck and I how I know I have slept with 58 women no condom and I'm 24 yr old.