DD has Classic Flu Symptoms--How Worried Should I Be?

<p>If you don’t get a high fever how do you know you are seriously sick? I still have this stupid sore throat thing going on, it’s been about a week now, but still no other symptoms and no fever-- I am not even taking advil anymore and STILL no fever and the sore throat is mild and not becoming worse. The sore throat is annoying but I feel fine otherwise, it’s not hindering me in any way. Even if it got worse or if I got a cough too it wouldn’t be more than a bother. How do you know when you are really sick without a fever?</p>