Hi. I am a 22 year old black male, bi and just now performed oral sex to my friend (with a condom). We kissed, but i didn't swallow anything. I just got tested and I am negative for HIV, Herpes, Syphilis, Hep and Gonorrhea. I am kind of paranoid. He attempted penetration, but couldn't really penetrate. He said he was clean. Should I be worried?