If you are unfamiliar with the symptoms of altitude sickness, experiencing them can be quite scary. Side effects range from headaches and fatigue to dizziness, shortness of breath and nausea - none of which are particularly enjoyable, especially when you are on vacation. For visitors and new movers coming to Colorado’s high altitude towns it is very common for people to experience this, but what most don’t know is that altitude sickness (AS) or acute mountain sickness (AMS),