The cause of<unk>  is unknown but may relate to changing levels of estrogen and the hormone human chorionic gonadotropin. Some have proposed that<unk>  may be useful from an evolutionary point of view, arguing that<unk>  may protect both the pregnant woman and the developing embryo just when the fetus is most vulnerable. Diagnosis should only occur after other possible causes have been ruled out. Abdominal pain, fever, or headaches are typically not present in<unk> . Nausea and vomiting may also occur with molar pregnancy.<unk>  is related to diets low in cereals and high in sugars, oilcrops, alcohol and meat.
Morning sickness
Q fever
Ski sickness
Relapsing fever
Brain fever
Fever of unknown origin
Enterotoxemia
Heat illness