Hi Mark. What a worry for you.
Hopefully Munster threw up whatever it was and there’s nothing left in her system. If she’s not eating you’re not necessarily going to get a stool sample too easily. You could try a trip out in the car, which tends to make them go.
Was her wee clear or cloudy? A bad smell could be a sign of bacteria. The more hydrated she is the clearer the urine should be.
Keep up the baths and hopefully she’ll pick up by the end of the week. Please let us know how things go.