A few days ago I went there and it was the top of the tide, so I couldn't walk across, but I found that the magnetic pull towards the edge combined with fear that is my experience of vertigo had gone. I went today to see if it had really gone when the tide was at its lowest. It has! I'm not sure what the cure was, but I think that it goes back to the night I described a while ago when I gave my anger to God to deal with. The first time I went up to the harbour after that, I thought that if it worked for anger, it might work for fear as well and vertigo, so I prepared mentally by giving God that fear. Was this the cure? Or maybe it is simply that I wrote about it. Or perhaps that I have a little boy who is afraid of heights after falling out of a tree and breaking his arm. Maybe it was time to drop my own fears so that he could learn to face his. Needing to be strong and whole and healthy for someone who depends on you so much (and he depended on me for his life when he was a premature baby) is the best incentive.
I'm not planning to do any bungy jumps any time soon, or abseil down buildings, but I can enjoy a trip to Lydney harbour without fear now. I will go and look up that butterfly.