Do you think I might have a very early case of swine flu?

Lately, I have been feeling very tired, almost depleted of energy, if you will. I feel very jumpy and irritable, I feel sick whenever I eat, I get average to severe stomach cramps on a regular basis, and my stomach growls a lot. What do you diagnose? My dad thinks he has it and I think I might be getting it. Help?? Thanks to all who answer in advance.