Pregnant. Nausea, but I can't. What's going on?

Pregnancy shows nausea symptoms are more common, if you can not spit out, indicating that the symptoms of anti-pregnancy are relatively light, then pregnant women should relax, light diet, generally over 1 month or so the above symptoms will disappear. However, if the symptoms of pregnancy are serious, nausea, vomiting and vomiting are more serious, unable to eat, it is easy to cause dehydration and water electrolyte disorder of pregnant women, which has a serious impact on pregnancy. It is necessary to go to the hospital for infusion treatment in time to prevent affecting the mother and fetus.