My Uncle seems OK. The cat scan was negative, they no longer think it was a stroke. Doctor did make him leave, though. Told them to get below 5000ft so they left to head back to MN first thing this morning. My aunt and cousin were both sick with stomach problems this morning, so they've all headed back, missing the wedding. Doc says his blood pressure is pretty low, that and the high altitude probably caused it, but advised he go in for cardiac screening once he gets home.
Wedding was beautiful, I'll post some pics in a couple of days.
Thanks so much for the well wishes, thoughts, and prayers.