Do I have the flu?

Im really scared of Swine flu?
I haven’t been to Mexico, but i have a couple of the symptons of the Swine flu. I live in London, so i have a risk. The symptons i have are
Sneezing, coughing, runny nose sometimes, tiredness, heavy head feeling, chills sometimes headache for a about 10 seconds sometimes, and sometime aches in my legs and my arms.
I’m really scared and only 14, what should i do, i am also not at school today because i dont feel well, someone help. My mum keeps on saying to me dont be ridiculous you dont have swine flu but i dont know :S