kalynzoo wrote:
altitude sickness is very common. We find it takes 3 or more days to acclimate at 7000ft. Estes Park is fantastic but it does take a bit to keep from getting really tired with even the shortest of walks. Guess it is just a sign of getting old. An of a lower red blood cell count, which is why the Olympics often train at high altitude to increase RBC. It's common.
I agree probably getting older has a lot to do with how fast you can acclimatize.Also I think it would help to not be impatient when accending to higher areas.