Most often, acute mountain sickness is going to be a factor for you if you experience a major change in altitude. Though this could happen travelling from city to city, more likely it’s the case when you’re actually hiking in the mountains, especially if you’re not used to it.
Besides headache, you could experience trouble sleeping, light headedness, nausea, shortness of breath, rapid heart rate, dizziness, and a loss of appetite.
If you get more severe mountain sickness, you could find you’re having trouble walking a straight line, your skin gets bluish, gray or pale, you get confused, your chest gets tight and you can’t even catch your breath while you’re resting, and you start coughing and may even cough up blood. This is very serious, and can even lead to death if not treated.
A recent study in the Eastern Alps reminded me that a little education can prevent a lot of problems here. Researchers found that water intake was a factor, for example. Make sure you’re well hydrated, especially when you’re up in higher altitudes.
Also, exertion seemed to play a big role. Often people are hiking hard when they’re simply not experienced – take it slow, and you can avoid a lot of problems.
A history of migraine was also a risk factor. Those of us with migraine do need to be more careful when climbing to higher altitudes. Drink lots and take it slow, and headache symptoms can be minimized.
If you’re travelling up above 6300 feet / 1900 meters you do have a chance of experiencing mild symptoms. Over 14,000ft / 4,200m, and you can almost bet on it. But a little caution, awareness and preparation can hopefully make your trip much more enjoyable.