Which of the following symptoms is NOT typically associated with Acute Mountain Sickness?

Acute Mountain Sickness (AMS) commonly presents with a range of symptoms due to the reduced oxygen levels at higher altitudes. Nausea, loss of appetite, and insomnia are all well-documented symptoms associated with AMS. Nausea often occurs as the body struggles to adapt to decreased oxygen levels, while loss of appetite can be a response to gastrointestinal distress that frequently accompanies the condition. Insomnia may occur as a result of discomfort and changes in sleep patterns induced by the altitude.

Hallucinations, however, are not typically associated with AMS. While extreme altitude and severe cases of altitude sickness can lead to significant disorientation or confusion, hallucinations are more indicative of severe altitude illness, such as High Altitude Cerebral Edema (HACE), rather than the more common symptoms observed in Acute Mountain Sickness. Therefore, identifying hallucinations helps in understanding the spectrum of altitude-related illnesses and reinforces the importance of monitoring symptoms closely when ascending to high altitudes.