#2 Your stomach is also causing you issues
If you have had what seems like a normal run-of-the-mill cold but you are also feeling nauseated or have any other stomach problems (like diarrhea, an upset stomach, or even voting), you should go see a doctor as soon as possible. These are all symptoms that point to the fact that you are suffering from something more serious, such as the flu.
Not to mention, having any of these symptoms out of the blue is something that you should get checked as soon as possible. You may have also contacted a stomach bug or something else that could lead you to become dehydrated, and you should get rid of these problems and enjoy your life in a normal manner again.