My exboyfriend lived near a hospital and once, we met up there (he was sitting on the waiting bench) before we went to his flat. He started fingering me and it was only later that I realized he hadn´t washed his hands. It´s over five months later now, I´ve been ill twice in the meantime, but nothing serious (it only lasted a couple of days each time). I feel fine, it´s just that I´m terrified that he infected me with something and it hasn´t shown up yet. Is that possible/worth worrying about?