Is her tummy making any noises? Even when it's stasis, they have gas along with it, so always a good bet to treat for that. As long as she has been peeing, pooping and eating, the chances are good it's gas from something she ate.
If she was straining to pee, or her poops were tiny and dry, she was having trouble chewing or didn't even want to sniff food, or she had beenfeeling progressively worse or eating progressively less, I'd look elsewhere.
But for now, Simethicone, tummy rubs, keep her warm, get her moving around if you can... as noted, vibration therapy like the toothbrush or putting her on top of a dryer...
Give her12hours before you worry about feeding her, and maybe six or so before making her drink water. (She's probably willing to drink some on her own).
sas :clover: