Yes, it is possible. Some people can have almost no symptoms at all, but that is uncommon. Almost all cases of the flu do involve a temperature usually higher than 101F (38.3C). Having flu symptoms without a fever are more likely caused by the common cold virus, though.
I would think so. Fever does make your heart rate higher and with the flu comes high fever.
Yes, it is.
Flu
the cold a fever
The flu has moderate to severe muscle pain, there may be vomiting, high fever and fatigue. In the early stages it can be hard to tell the difference between a cold and the flu. But when the fever and fatigue set in, you know it is the flu.
It depends on the illness you have. If you have food poisoning you will have a fever and if you have the flu you will have a fever but the rest of your symptoms will be different.
Fever and chills are a result of the flu. With the flu comes symptoms such as fatigue, chills, sweating, and fever. The length of these symptoms last no more than two to three weeks.
Could be gastric flu.
Not if they are no longer infected. If you are in contact with them after they had the flu but it has been a full 24 hours since they last had a fever without taking fever-reducing medicine, then they should no longer be able to pass the flu virus to you.
Having a fever can make you feel cold and shiver from sweating. It is nature's way to cool you off from a fever. You may also feel hot with a fever. You can have a fever with the Swine Flu (Novel H1N1), so you may feel either way from the fever. See related question links below for more information about swine flu symptoms.
You get the chills plain and simple
Flu and fever.