Diarrhea, vomiting, cramps, body chills. she is from maine and mimics my previous experience with altitude sickness. what should we do?

To MD if not better: This is unlikely to be altitude sickness but if symptoms are severe or not resolving see a doctor. It is more likely that this represents an acute gastroenteritis. It would be uncommon for someone to develop such severe symptoms with the altitude in Denver. Shortness of breath on exertion would be more likely. This sounds like a virus.