Kimmy Hays is a famous site model.Kimmy is not a site model she is just a very pretty girl who started modeling on shoots. she has a two sisters - cheyenne s cox. and samantha hays. she has an older brother and is engaged to chris edge.May 9th 1997.Not concrete on this, But I would believe its origin lies in "Old Wive's Tales",that generally revolve around what was observed by being near or in hay and gaining a fever afterwards. Hay Fever is another term for seasonal allergies.