L.R.
I had horrible HORRIBLE morning-day-night constant sickness with both of my girls. It was like the worst flu 24-7 so I feel terrible for you! The key was to listen to my body and if you can push past the nausea for a second it will sometimes tell you what it "craves" and when you eat that sometimes you get a break. With my first daughter it was green apples...the only thing I could stand. Also, this is bad, but when I was desperate for help I was searching for any ideas and I read that potato chips help. It did, unfortunately. Good luck! This too shall pass. (though you don't believe it now!)