Certain conditions make me more scared than others. I don't have great balance and have position vertigo (which isn't affected by heights), which might account for some of it. I've been at the top of the CN Tower, looking down through the glass floor, although I didn't feel comfortable walking on it. I don't think I was scared at all. My daughter was lying on it, no fear whatsoever. (My Mum, was hugging the walls and shaking, even though she was perfectly safe.) My Gran lived in a multi-storey block of flats, on the 22nd floor. She had a balcony and, if I went out on it, I was fine. But, if I looked up at the sky, I had a really uneasy feeling, as if I wasn't secure, even though the wall was up to my shoulders. I think it was when I could no longer see the wall that I became unsettled.
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"We act as though comfort and luxury were the chief requirements of life, when all we need to make us really happy is something to be enthusiatic about." Charles Kingsley