Altitude sickness is an acute reaction of the body that cannot cope with the lack of oxygen and pressure changes at an altitude of 2,000 meters [6,500 ft] or higher. Its symptoms are dyspnea, dizziness, nausea, and loss of appetite, and in serious cases, vomiting, unbearable headache, and loss of judgment. At the worst, it leads to death. So you may have to pay dearly if you just go up to a high mountain, only trusting your physical strength. In fact, people die from altitude sickness in the Himalayas every year.
Those who climb a lofty mountain take medication to prevent altitude sickness. However, the higher the altitude, the more unexpected situation follows, so you cannot rely solely on medicine. The best way to cure altitude sickness is to go down the mountain quickly. It is solved naturally when the altitude becomes low.
If you are in a high place in mind, it can also cause side effects. The best cure in that situation is to look into yourself to see what position you are in spiritually and to go to a lower place.