My mum had it. It is a fear of certain patterns, not necessarily holes. One day I saw an old lady with joined up blotches on her legs and I felt a fear and my skin was crawling and itching.
I find it quite distressing to see shells in a pattern. If anyone saw the Harry Hill film they will know what I mean. It was a job for me to stay in my seat!
Tree bark, macaroni standing up in a saucepan, bubbles, those thin mushrooms all joined together on stalks, corals...cracks in dry earth...can all set me off shuddering and itching and just generally feeling very disturbed. Such a strange thing.