In 2010 my daughter fainted on the trail down to Woods Creek. Just tipped over while sitting next to me. Came back a moment later, but we were pretty rattled. Would have loved to talk to a medical professional to double check what could be wrong with her. It wasn't a reason to call the rescue posse, as we walked out over Whitney a few days later (where she fainted again in the Portal Store...). Never really figured out what happened those days, but it was always at moments of rest..