Yes, we do eat out when traveling. I guess I have learned to "try" to make choices (not always easy when eating out). I do the best that I can, and I try to leverage a splurge with a healthy option. I also like to preview the menu ahead of time so we can decide which restaurant to choose. It is not a perfect plan, but it has been working for me. I also get grumpy, if I have to deprive myself of all of the yummy treats.
This year, we were at 7,000-8,500 ft elevation. We did do a lot less hiking this year, though, and they were shorter hikes. I only used my rescue inhaler (exercise induced asthma) on the days that we set out on a hike, and that was only before we set out on a hike. It is anybody's guess as to why, but I think that I am finally learning to pace myself and go slow.
Both me and my husband were more easily worn out and tired, but my niece who is a ranger out there, said that the altitude does have that effect.
Enjoy your trip!