Around 4 weeks ago I had protected vaginal and oral sex with a prostitute in China. About 10 days ago I got a dry cough, and when I do strenuous activity I have coughed up mucus with a little bit of blood. I also have on off bouts of diarrhoea but I am not sure if that is my diet here. I am really worried this is a symptom of infection.
Please advise!