Symptoms such as vomiting, shivering, and sweating suggest severe tuberculosis. Physical effects may include shaking, shivering, irregular heart rate, and sweating. Severe chills with violent shivering are called rigors. Murad IV shivering and brutal sultan started with this shaking. In moderate hypothermia, shivering stops and confusion increases. Some women experience an uncontrolled episode of shivering or postpartum chills, after the birth. In mild hypothermia, there is shivering and mental confusion. It also reduces postoperative shivering, postoperative nausea and vomiting, and emergence delirium. Side effects include fatigue, muscle pain, headache, shivering, fever, and nausea. Blitz described Anne as bald, emaciated, and shivering. Some rhythmic motions (such as shivering or tremors) can create the illusion of cardiac arrhythmia. Spud looks for a towel for Carol, who is shivering and damp. They swim across and kiss as they sit shivering on the riverbank. Increased production is seen during fever and shivering. He experienced fever, shivering and joint pain&colon; symptoms similar to those of malaria itself.