I had unprotected sex with my girlfriend about a week ago and I developed red pimples on my pubic area, a sore throat, fever, fatigue and soreness at the tip of my penis. I haven't noticed any discharge, but when I urinate it tends to drip for a few minutes after. My girlfriend has not experienced any symptoms, but we both decided to go and get tested for STDs and all of the results came back negative. Trichomonas vaginalis, Gonorrhea, Chlamydia, Herpes type 1 & 2, Syphilis, HIV, Hepatitis B & C all came back negative. My doctor ended up prescribing me valtrex and I have been taking them twice a day although I have not noticed any changes.