cyclic vomiting syndrome symptoms
The main symptoms of cyclic vomiting syndrome are severe nausea and sudden vomiting lasting hours to days. A person may also experience one or more of the following symptoms: 1  retching, or making an attempt to vomit. 2  heaving or gagging. 3  lack of appetite. 4  abdominal pain. 5  diarrhea. 6  fever. 7  dizziness.