Hi Phil, it'll take you hours to get anywhere with all the people stopping you!
My vet gave me Panacur for Indie's first few times of worming, and to be honest I noticed no side effects. The first lot he had with a set of jabs too, and for a couple of days had runny poo, but was still eating well. It could well be a coincidence too, my boy is fussy - one day he'll wolf it down, then another day won't touch it - we alternate between Naturediet and Burns puppy and that seems to work well for him.
She could also just be feeling a bit off with her jabs, I have 3 kids and I know they all did - nothing spectacular, just a bit not right for a couple of days. So long as she's drinking, I'd just keep doing as you are doing and keep an eye out, but I'm pretty sure it may just be from her jabs.
Good luck on your first outing!
Shona