Causes of a spinning sensation and feeling light-headed include vertigo, circulation problems, medications and neurological conditions, states Mayo Clinic. Other causes include anxiety disorders, low iron, low blood sugar or dehydration and overheating.
Vertigo is the false sense that a person's surroundings are moving or spinning, explains Mayo Clinic. This condition is due to the brain receiving signals from the eyes and sensory nerves that are not consistent with the signals from the inner ear. Other causes of vertigo include infection, migraines and Meniere's disease. Circulation problems, such as a drop in blood pressure or poor circulation may also cause a spinning sensation.
Certain medications may also cause a spinning sensation, and these include anti-seizure drugs, sedatives, antidepressants and tranquilizers, states Mayo Clinic. Blood pressure medication may also cause this sensation if the blood pressure gets too low. People who have neurological disorders, such as multiple sclerosis and Parkinson's disease may also experience this condition.
Anxiety disorders such as panic attacks or agoraphobia often cause a spinning sensation, notes Mayo Clinic. Low blood sugar or low iron can also cause a spinning sensation, and these often affect those with anemia or diabetes. It is also possible that overheating or dehydration may cause a spinning sensation, especially if a person is physically active during high temperatures.