The symptoms of falciparum malaria usually appear between 9 to 14 days after the infective mosquito bite. Common symptoms include fever, chills, headache, nausea, vomiting, muscle pain, and fatigue. In severe cases, it can lead to complications such as severe anemia, respiratory distress, cerebral malaria, and multi-organ failure. If not treated promptly, falciparum malaria can be fatal.