When you wake up sneezing, coughing, and have that achy, fever, can't move a muscle feeling, how do you know whether you have flu or cold symptoms?

It's important to know the difference between flu and cold symptoms. A cold is a milder respiratory illness than the flu. While cold symptoms can make you feel bad for a few days, flu symptoms can make you feel quite ill for a few days to weeks. The flu can also result in serious health problems such as pneumonia and even hospitalizations.