Thanks for the query.
Fluid loss will be there because of vomitings and diarrhea
That can affect the general condition of the mother.
And also continuous vomitings and motions can decrease the amniotic fluid
level that can affect the nutrient supply to the fetus.
If treated early and fluids replaced these complications can be prevented.
Try to take antacids and anti-emetics to decrease the nausea
which can increase the appetite.