Colds can cause dizziness and fatigue. Medically, colds are divided into the common cold and the influenza. The common cold is an acute upper respiratory tract infection with symptoms of cough, nasal congestion, runny nose, sore throat and fever, which can also lead to dizziness and weakness. Because fever can lead to dilation of intracranial blood vessels, the relative lack of blood supply to intracranial blood vessels causes dizziness. At the same time, fever can lead to a large loss of body fluids and metabolism, accelerating the accumulation of lactic acid and causing weakness and even muscle aches and pains. Influenza is an acute respiratory infectious disease that causes continuous fever symptoms leading to dizziness and weakness, and the symptoms of dizziness and weakness caused by the continuous replication of the influenza virus in the body are more common and more common, therefore, influenza is often referred to as a severe cold.