beef jerkey helped me a lot because it is protein, it tricks your body into thinking it doesn't need food for a little while, so it will settle your stomach enough for you to really eat something.
I got to where I had to eat as soon as I woke up. I kept crackers on my night stand lol. For the most part Mine went away when I made it to the second trimester. I still occasionally will get it.. But not near as much as I did.