Can you fly at 2,000 meters in Dali, and is there altitude sickness?

Dali is about 2,000 meters above sea level. In theory, you can fly there, but this altitude may cause altitude sickness, or altitude sickness, for some passengers. Symptoms of altitude sickness may include headache, nausea, fatigue, insomnia, etc. Whether you experience altitude sickness and the severity of symptoms vary from person to person.