I have fear of heights, I hate the steps up to the entrance of a normal 737 but I don't fear that anxiety when I fly.
Someone once told me you need to have contact with the ground to have real fear of heights, and it seems to work for me that way.
I have no issues with steep turns, I find height in a plane exciting, the view to the ground magic, literally zero fear of the height.
But on my way to the Alps by car, the motorway from Dijon to Geneva, near Nantua just kills me. sweaty palms and all! The new Milleau bridge is one I will not cross.....