I have swine flu and i'm a bit worried?

Ok I'm 14 years old and an asthmatic. My GP said I was showing the symptoms of Swine Flu so he prescribed me some Tamiflu. I've had this since Sunday, and been taking the Tamiflu since Monday. I felt a bit better yesterday, but when I woke up this morning, omg, my chest, neck, stomach and lower back is killing me. I can't even type this without feeling pain. When I cough my chest/stomach hurts the worst. I thought I would be getting better not worse! I feel like a hyperchondriac for thinking I have Pneumonia but idk. Please help, thanks & God bless you all.