"Kate's got the Bellyache" is an American reel in cut time (with two crooked measures in 5/4) and A Mixolydian. The tune has only ten measures. The parts are played AAB (Titon) or One part (Milliner & Koken). It is played in ADae or standard fiddle tuning. Jeff Titon (2001) identifies this tune's provenance as south-eastern Kentucky, exclusively. It is also played with parts reversed like Edden Hammon's "Jake's Got a Bellyache". It was printed in Milliner & Koken's Milliner-Koken Collection of American Fiddle Tunes (2011) and Titon's Old-Time Kentucky Fiddle Tunes (2001). It was recorded in the field by A.J. Johnson of Annville, Jackson County, Kentucky (1975).