I could be wrong, but it sounds like morning sickness if you ask me. You would likely have body aches with the flu and or a fever.
With morning sickness your belly just doesn't feel right, nothing sounds good to eat and the smell of something might send you running for the bathroom :)
I should add that onset for morning sickness os around 8 weeks, give or take a week. Don't worry though, your body is designed to make sure that baby is getting what he/she needs through these queazy times.
Hope you feel better soon!