With DD, by 6 weeks I was non-stop vomitting which didn't let up until 14/15 weeks. I was asleep by 7pm every night and I wanted sweet things. This time, I'm gaggy but overall OK...I get nausea but it does't lead to anything as long as I eat (knock on wood!). All I want is spicy, salty food!
I guess it's true that every pregnancy is different!
How about yours? Are you seeing differences?