I feel horrible! Do I have the flu or is it just a common cold? This question is usually the first that comes to mind when you get that lousy-all-over-feeling that lets you know you've caught a winter season bug. Some of the symptoms of the flu (influenza) are very similar to those common to the common cold; however, there are some flu symptoms that are not. If you suspect you have the flu and not just a common cold, see your doctor within 48 hours if possible. He may be able to prescribe medications ...