Pain in your abdomen. One of the most common symptoms of IBS is abdominal discomfort or pain. You may experience stomach cramping after eating a meal. It may get better after you have a bowel movement.
The Dance of Life, 1899 by Edvard Munch. A distinction can be drawn between those of Munch's imaginative works that are directly symbolic, like Jealousy, and those like the present picture that are illustrations of a metaphor. The latter may be more difficult to interpret.
The Fly Girls were the dancers on In Living Color in the early 90's, but the term is much older. Since the word is used with this meaning as part of the title of the 1971 film Super Fly, it must come from the late 1960's at the latest, and could easily predate that.