So what is it about getting something like the flu that can trigger a headache? The influenza virus, commonly called the flu, can cause a host of symptoms, including fever, nasal congestion ...

With overlapping symptoms like fever, sore throat, runny nose, cough, fatigue, headaches and body ache, it can be hard to ...

Fever is one of the most common flu symptoms, and it commonly lasts for three to four days. Other symptoms include chills, severe headache, sore throat, cough, chest discomfort, and a stuffy or ...