Maybe the Germany trip would be better? I don't know.
She DOES get altitude sickness at 4000 feet and the highest up we have ever stayed is 6000 feet. She used to get horrible horrible sickness and she is allergic to ALL of the meds to prevent it. One year it got so bad we took her to ski patrol who said before you get in the car start motrin and tylonal rotations along with gatorade and water. Well, that has done the trick.
We go skiing so we have to take these precautions quite often. With these tips from ski patrol all we have gotten is headaches and bad nights sleep. YES!! lol. I think she will be okay on the trip, like if we REALLy wanted to do it, I would, but I'm not sure if its really worth it. ???