Hello, I am Brazilian and I have doubts they are leaving me sleepless. 3 weeks ago I had protected sex with a prostitute. After we finish, we happened to drip a little vaginal secretion in my glans, the tip of the penis. I cleared soon. Two weeks later, I felt several symptoms of the acute phase, such as sore throat, coughing, sneezing and stomachache. I made a test ELISA 4th generation 17 days after intercourse and also a PCR / RNA, both gave negative. Will be all in my head? Or should I wait for the immunological window?