Hello doctor , Recently i was thinking about full STD testing including Chlamydia , gonorrhoea, herpes etc. So I was thinking how to do these tests. I mean i have to see a doctor first or i can simply go to an STD clinics and tell them to do the STD tests..And can you give me a idea about the price of STD tests in govt. Hospitals of Kolkata?? I recently tested for HIV and i came as NON-REACTIVE. I had sex with a prostitute thrice (I always used condoms) so I am a little bit worried. Though I am more or less OK but recently I have noticed a very small 'cut like' thing on the shaft of my penis. Is it worrying doctor?