Definition: Anaphalantine refers to a severe pain or discomfort that occurs suddenly without warning, often accompanied by fever, headache, nausea, vomiting, muscle weakness, or dizziness. This condition can be caused by various conditions including viral infections such as influenza (flu), bacterial infections like pneumonia, or parasitic diseases like malaria, and sometimes chronic pain such as osteoarthritis, fibromyalgia, or multiple sclerosis. Definition: 1) Anaphalantine is an intense discomfort that occurs suddenly without warning. 2) It's often accompanied by a fever, headache, nausea, vomiting, muscle weakness, or dizziness.