Clinical symptoms include diarrhea, fever, fatigue, nausea, cough, pneumonia, abdominal pain, chills and rash. Symptoms may include fever, headaches, chills, and nausea. Nausea, vomiting, diarrhea, headache, dizziness, and fever/chills are also common. It presents with sudden onset of chills, fever and joint pain. These include increased heart rate, muscular tremors, headaches, nausea, fever, and chills. The illness is characterized by abdominal cramps, diarrhea, vomiting, fever, chills, and a generalized malaise. I felt cold chills and an indescribable excitement. Later symptoms include fever and or chills. Prodromal symptoms are flu-like, including fever, chills, and dry cough. Severe chills with violent shivering are called rigors. Fever and chills develop in some cases. Infected individuals suffer from hemoglobinuria followed by jaundice, a persistently high fever, chills, and sweats. This leads to the fever, chills, and fatigue common in bacterial pneumonia. During the first few days of illness, most people have fever, chills, and fatigue. Chills, sweats, and thrombocytopenia are also common symptoms.