Altitude sickness

In 24 hours we have gone from sea level in Myrtle Beach to 9,000 feet in Quito and almost 8,000 feet in Cuenca. We have to keep from overdoing our activities for the first day or two at this altiude. We noticed today in our walking about town (entirely flat) that we feel unusually tired. Even climbing 2 stories to our room is a bit harder than we expected.

We had the same experience last year in Quito, but we eased the transition by not moving around much during our first 3 days in our convention hotel and touring entirely by bus and minibus. This trip we'll just have to be careful  until we get used to our new environment.

Carolyn has taken ill in the last hour, which may be aggravated by the altitude. We hope she recovers quickly.