Not keen on heights myself either. I remember a visit to Caesars Head in South Carolina which was quite scary as I wasn't expecting to have to negotiate the narrow high access whilst carrying a 6 month old baby. Not quite like the girl in the video. That looks false to me. Anyway, I'm still here to tell the tale!
I used to be fine with heights, no problem up ladders or walking along a cliff edge. I refuse to blame my age, must be another reason for my sudden aversion