Let me tell you my mad existence.2004, I sexed with a lot prostitutes,some times without a condom. In the end of 2004, I tested syphilis neg and HIV neg. And I began to worry about HIV since then.2005, All my intercourse with prostitute is oral sex,or one or two times protected vagina sex.The last time of my sex was May 27th. I began to worried again because 3 days after that,my testis got quite itching,and then I saw a red matter on the outer of my foreskin. Till now, 10days passed, nothing changed. I wonder do I have some serious STD like syphilis,herpes,HPV?Thanks