I'm in the same boat. All day, every day. And I'm a middle school teacher, so my day is non-stop action.
I'm on B6+ Unisom, so i can't imagine how I'd be feeling without it. I've got a Zofran prescription that I finally broke down and started using this week because its getting so bad.
Luckily I see my OB tomorrow, so hopefully she has some suggestions.
End of January (end of first tri) cannot come soon enough for me.