light-headedness

Source: Pixaby.com Have ever experienced dizziness, light-headedness, shortness of breath, or nausea in the mountains? You may have had a case of what is referred to as altitude sickness or acute mountain sickness (AMS). Altitude sickness can occur at altitudes above 6,500 ft (2000 m) and a more extreme and severe case of altitude sickness is High-altitude pulmonary edema (HAPE) […]