What are the symptomsof moderate acute mountain sickness?

Altitude sickness: Acute altitude sickness may be associated with any combination of the following symptoms: fatigue, headache, dizziness, insomnia, shortness of breath during exertion, nausea, decreased appetite, swelling of extremities. Altitude sickness develops when the rate of ascent into higher altitudes outpaces the body's ability to adjust to those altitudes.