What you describe is of no risk for HIV. HIV is spread in very specific ways that include having unprotected vaginal or anal sex or sharing IV drug needles to inject drugs. Those are the only risks. Touching, fingering hand jobs, mutual masturbation, someone's semen on your hand are all NOT risks. That is simply not how HIV transmits. Air is present. Air renders the virus inactive. Whatever symptoms you think you are having are UNrelated to HIV. No risk