Symptoms

Cold hands and feet
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 seasonal flu
very similar to menigitis

Serious Swine Flu Symptoms:

Fast breathing or trouble breathing
Bluish or gray skin color
Not drinking enough fluids
Severe or persistent vomiting
Not waking up or not interacting
Being so irritable, one does not want to be held
Flu-like symptoms improve but then return with fever and worse cough

Swine Flu Treatments :
As with the regular seasonal flu, antiviral flu medications, including Tamiflu (oseltamivir) and Relenza (zanamivir), are available to prevent and treat the swine flu.
What makes this confusing is that there were many reports this past flu season that the seasonal flu virus was resistant to Tamiflu. In fact, it was recommended that doctors go back to using older medicines like Symmetrel (amantadine) or Flumadine (rimantadine) with Tamiflu or Relenza instead, if someone had a seasonal influenza A (H1N1) virus infection.
In contrast, the swine influenza A (H1N1) virus seems to be resistant to older medications, but still sensitive to Tamiflu and Relenza.

History of pandemics

It is said that the first pandemic (meaning affecting many people or a wide area) in 1918 killed about 20 -40 million people worldwide, which originated from birds. The influenza A (A1N1) or "spanish flu" still circulate today after being introduced again into the human population in 1977.

The second pandemic in 1957 called the "asian flu" had over 700000 victims, many in the US. The elderly had the highest rates of deaths.

Making it the mildest pandemic in the 20th century was the "Hong Kong flu" in 1968 with roughly 350 000 deaths.

It is widely believed that the Spanish Flu mutated into Avian Flu Virus in 2003.

The latest pandemic or "swine flu" orginated in Mexico was identified in April 2009.