What causes dizzyness
High blood pressure, usually extremely high, causing damage to the brain
Low blood pressure, which can have multiple causes ranging from diseases of the heart to bleeding disorders that cause anemia to adverse reactions to medications
Heart causes
Heart attack, arrhythmia (irregular heart rhythms), heart rate too fast, heart rate too slow
Weakened, aged, or diseased heart muscle, toxins or drugs affecting the rate or force of the heart
Brain causes
Stroke, tumor, headaches, migraines, hyperventilation
Fainting (syncope) - A loss of blood supply to the brain causing loss of consciousness, typically after loss of blood output by your heart
Many things may trigger this infamous "common faint"鈥攅motions, rapidly assuming an upright position, even urination
Dementia or senility - Any illness causing confusion or changed state of mind, such as medications, drugs, or alcohol
Medications (Almost all medications list dizziness as a possible side effect.)
Blood pressure medications, sedatives, tranquilizers, antidepressants, pain relievers, some antibiotics
Diuretics, causing dehydration, blood electrolyte changes, heart effects, or direct side effects
Metabolic disorders
Hypoxia, low blood oxygen
Low blood sugar (hypoglycemia) including an insulin reaction
Dehydration, from many causes
Perhaps your blood pressure is low or you are anaemic, or you have an ear infection? There are many causes, but if it is prolonged, get yourself checked at the doctors.:-)
Low blood sugar or drop in blood pressure. Or an Inner ear disturbance.
So many things cause dizziness, could be...lack of food or water, heat exhaustion, having a fever, lack of sleep, low iron and a few more.