for about six months now i have had a problem with my penis. i seem to frequently urinate and leak what i think is urine through the day, this creates quite a smell, and my groin feel moist, this fluid while i havnt been able to see it also has quite a sting to it like acid on my skin, my groin while not extreme seems to throb contsantly and the tip of my penis stings especially after sex. i have had no blemishs or sores in the region and have had several blood, swab and urine tests that show no infections.