Is it necessary to have a running nose, cough and fever in swine flu?

Some of the Symptoms of swine flu are given below;
“fever, which is usually high, but unlike seasonal flu, is sometimes absent
cough
runny nose or stuffy nose
sore throat
body aches
headache
chills
fatigue or tiredness, which can be extreme
diarrhea and vomiting, sometimes, but more commonly seen than with [...]