What Are The Symptoms Of Flu?

Hello, I am a male who had vaginal intercourse with worker at a brothel abroad recently. I used a condom. It s not something I ve ever done before or will do again, so it s not a frequent thing. A little less than a week after the incident I developed flu like symptoms. I had a moderately bad productive cough, weakness/fatigue, etc. The cough subsided after 4-5 days, but I m still experiencing fatigue and and weakness particularly in my legs after another week. I m not used to symptoms lasting this long. I know it s more likely I caught something on the trip or the long flight home, but I very rarely get sick and the consistency of the flu like symptoms I see online have me very worried. I fully intend to get tested as soon as it would be feasible. But it s only been about 2 weeks and in the mean time my anxiety is off the charts. I d like to know if my symptoms are at all consistent or something to worry about. Any advice or consul would be much appreciated.