Hiccups in motion

Here is a not-well-focused video of my belly, from my perspective. What you will faintly see is the rear end of an in-utero baby doing this;

Hiccup.
Small squirm.
Biiiig squirm!
Readjust.
Hiccup.
Hiccup... and lots more hiccups. The hiccups get more clear after about halfway through the video, and most of the action is in the upper left of the screen.