Early on, flu symptoms may be difficult to diagnose as they often mimic symptoms of the common cold. Sneezing, runny nose, and sore throat are all common with the flu, but they are also indicative of a harmless cold. Unlike the flu, colds develop very slowly over time.
The flu will come on suddenly and without much warning. Although a cold can definitely be a nuisance and interfere with your daily activities, you will typically feel much worse when suffering from the flu.
Common signs and flu symptoms include: