3.Increase in Temperature
This is a sign that your body is trying to fight an illness or infection, but it’s rarely caused by a cold. Flu, bronchitis, and pneumonia are more common causes of fevers. You are considered to have a fever when your temperature reaches 100.5 F.
4.Body Aches
You may have some slight body aches with a cold, but stronger ones are usually a sign that you have the flu. This is because short-term achy muscles often happen along with a fever.
