Hello Sir, I Wanted Take Test For STD Gonorrhea .

hello sir, i wanted take test for STD Gonorrhea . i had sex with 2-3 female ... used condoms but had unprotected oral sex. so wanted to test for Gonorrhea and other STD. where can i go for test in kolkata or durgapur. timing and how can i approach a doctor? please guide. as such no symptoms but still i wanted to test myself.