A name for a phobia of belly buttons?

My fiancee has a very real fear of anything touching her belly button. She gets white in the face and says she's going to throw up whenever I test this out, and she isn't one to overexaggerate anything. We love each other very much and it's not like this hurts our relationship or anything, but we... show more My fiancee has a very real fear of anything touching her belly button. She gets white in the face and says she's going to throw up whenever I test this out, and she isn't one to overexaggerate anything.

We love each other very much and it's not like this hurts our relationship or anything, but we were wondering if this phobia has a name to it. I tried Google-ing it but none of the phobia lists I found had an entry for "fear of belly buttons", "navels", or similar.

Any help is appreciated.
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