Sick sick sick

This is my second and it is so different, with my son I got sick but I could eat and never lasted long. To me it was a nice pregnancy.. This time around I can't eat sugars it makes me sick headaches shakes and all. I get sick off of any thing healthy for me which leave me eating not much. I'm so worried this time around that the baby isn't getting what it needs cuz I can't eat much. Anyone else as sick as I am.