Elf On A Shelf
...
In America, it is far from unknown for them to drop or allow to drop, a colicky horse in a lorry then physical roll them down the ramp. It can untwist the guts. A last resort maybe but if you have nothing less to try and the nearest vet hospital is a 3 hour drive away (this is quite common) then I suppose you may as well give it a go.
We had one that was walked, lunged and travelled to no avail. At the vets he was knocked out and hand rolled, again didn't work so ended up getting surgery. Sometimes it works sometimes it doesn't.