Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Loss of balance while standing without loss of consciousness is highly suggestive of orthostatic hypotension. Orthostatic hypotention happens when the blood pressure suddenly drops too low. It occurs when the brain and heart do not communicate with each other properly to raise control blood pressure. When you are standing up from a lying down position or seated position your blood pressure drops because blood is pooled in the legs because of gravity forces. Your body should adjust blood pressure by increasing heart contraction forces, heart rate and constricting blood vessels. In orthostatic hypotension the body is unable to adjust blood pressure according to the body needs and it drops to that level that causes loss of balance, dizziness, weakness, headache, feeling tired, etc. Dehydration and vasodilatory medicines are additional causes of the orthostatic hypotension. These symptoms don’t last long and often goes away after sitting down for a while. Please, get your blood pressure measured in both sitting and standing position. This will help you properly diagnose orthostatic hypotension. Try following life-style modifications: increase fluid intake rich in sodium and potassium, decrease alcohol if you drink, avoid situations that trigger symptoms, such as standing up from seated position fast or standing for long periods. If the above life-style changes will not help, hypotension may be a sign of another medical condition. See your doctor for thorough health examination and tests. Hope I have answered your query. Let me know if I can assist you further. Thank you, Malik Amonov MD