the boys and girls of freedumb house are currently experiencing this sensation as May 11 moves ever closer
1. Informal. a feeling of fear, apprehension, or nervousness.
2. Informal. intestinal cramps or other intestinal disturbances.
We must pack off to Brother Michael because we have the collywobbles!
— James Joyce, A Portrait of the Artist as a Young Man, 1916
Collywobbles came to English in the early 1800s and is presumably based on the term colic meaning “a sudden pain in the abdomen or bowels.”