How can tell you getting sick?

P-

Typical uncomplicated influenza symptoms are abrupt onset fever, myalgia, headache, malaise, dry cough, sore throat and rhinitis.

http://prod.hopkins-abxguide.org/diagnosis/respiratory/influenza.html?contentInstanceId=255330

If you are healthy and not at the extremes of life, there is verylittle chance that you would succumb to this illness.

JayR

thanks for answering me back and thanks for letting me know how I can tell too.Thanks.

IMHO, whenever I feel cold I'd want to cuddle up under the blanket turn off all fans or A/C and rest for a while. If it gets colder, then for sure I am close to having a flu. So better have a good judgement if its just a laziness symptom or a real flu by taking a rest for a while. Napping for just 15 mins will relive your body and will tell you if its time to take a long rest or up and go for a long day :)