Hello every one. On December 2008, I had a sexual encounter with a transsexual escort. I performed unprotected oral sex, and protected anal sex. What are the chances that I have contracted some form of STD. My symptoms are worrying. For the past two weeks, my eyes have been slightly yellow(red), also the left side of my body (spleen area) hurts when I press it. Are these symptoms STD related? I have tested for HIV, about 15 weeks after the encounter, and it came out negative.