Altitude Sickness or Acute Mountain Sickness is usually felt by the climbers who climb more than 2000m above the sea level. When we go higher after an altitude the oxygen layer starts lowering. The lower oxygen affects the health of the climbers. 

Acute mountain sickness has various symptoms. Sometimes it is very basic like; 

  • Headache
  • Dizziness
  • Nausea
  • Vomiting
  • Fatigue and loss of energy
  • Shortness of breath
  • Problems with sleep
  • Loss of appetite 

Sometimes it gets worse. For those who have some physical problems or those who hike too fast. You can experience some of the severe symptoms like;

  • Loss of coordination and trouble walking
  • Shortness of breath even at rest
  • Inability to walk
  • A severe headache 
  • Tighten chest
  • Hallucination