Can't stop eating

I've heard a lot of early pregger moms can barely eat anything their first trimester or have low appetites. I'm 5 weeks 6 days along and I'm constantly hungry. I eat all the time. It seems like every half an hour my stomach is telling me it's time to eat. Also when I drink water it kind of makes me queezy but I've been trying to make myself drink water as much as I can considering ive never been a heavy fluid consumer even before pregnancy, my whole life really.