At the moment, my legs are sore and tired, weak, my eyes are swollen, I feel like I have a fever, but I do not.; I have cold chills from time to time, and I feel tired constantly. Over the last week, I have not had any alcohol. I do not smoke, take any drugs, so I feel like I have mononucleosis. I am 53 years old, so what do you think when I have no cough or sore throat.