Bethie,
I had several obstructions after takedown and there is no mistaking that sensation. There is a knotted up feeling in the bowel and the pain pulsates every time your bowels engage in peristalsis. In other words, every minute or so, or however long the intervals between peristalsis occurs, there is a pulsating pain, that pain being caused by the contents not being able to pass the obstruction when thrust or propelled forward by the normal peristalsis of the bowels.
The pain of an obstruction gradually intensifies over time as the mass of the digested materials above the obstruction grows in size or volume. The longer the delay to get an NG tube in, the greater and greater the pain will get as the mass of substances which have no place to go but down increases.
I went through this unpleasant experience several times and there is no mistaking it when it occurs. If it happened to me right now I would know it and I would be on my way to the ER.
If daughter of Bethie is moving contents of her pouch out, it is likely not an obstruction.