a cold or the flu?

Do I have a cold or the flu?
According to Oxford Dictionary,
a Cold-a common illness that affects the nose and/or throat, making you cough.
The flu: an infectious disease like a very bad cold, that causes fever, pains and weakness
CSULB website
http://www.csulb.edu/divisions/students2/shs/flu.htm
Colds and flu are caused by viruses. Flu is short for "influenza." True flu is a virus that affects your upper respiratory and lower system – your nose, throat, breathing tube, and lungs. "Stomach flu" is upset stomach and diarrhea caused by a virus in the stomach and intestines. This is not true flu or influenza.Flu symptoms come on suddenly and affect the body all over. Cold symptoms mostly affect you above the neck. A cold typically goes away in 10-14 days with or without treatment.
Should I Take Medicine For a Cold or the Flu?
No medicine can cure a cold or the flu. Medicine can, however, help relieve your cold/flu symptoms. Please look at the guidelines for self-care for some of the over-the-counter cold/flu medicines
In most cases, you don't need to see your doctor when you have a cold or the flu. However, if you have any of the symptoms below, seek medical advice.
A cold that lasts for more than 10 days
Earache or drainage from your ear
Severe pain in your face or forehead
Temperature above 102° F
Shortness of breath
Hoarseness, sore throat or a cough that won't go away
Web Links to More Information:
Centers for Disease Control and Prevention (CDC) information on Influenza (Flu)
Flu information from the American Academy of Family Physicians (AAFP)

普通感冒-Cold　　感冒通常變化比較慢，通常要等到感冒病毒進入身體二、三天後，身體才會起變化。首先是喉嚨癢癢的、鼻子怪怪地，接著是身體稍微熱熱的，然後就開始流鼻水、一陣一陣地咳嗽。小朋友和老人家就比較嚴重一點，會發高燒。正常人若是好好休息喝水，症狀大概延續二至七天，就會恢復原來的健康了。
流行感冒-Flu】　　流行感冒則是以來勢洶洶的方式，一開始會身體發冷、一直乾咳、頭痛欲裂。然後全身痠痛、疲倦不堪、被迫乖乖倒在床上才覺得舒服。高燒在二至三天後會減弱，然後又是鼻塞、喉嚨痛。流行感冒若是好好治療，過幾天就好了。但若是以消極抗戰的方式對付感冒，則可能好幾個禮拜都好不了。鄭慧文，美國加州大學藥學博士