Thanks for the replies and advice all.
To answer Lana, no she hasn't had any antibiotics so it won't be C-diff.
And to debs71 above, not she hasn't vomited - tbh, if she had been vomiting I would have been more at ease it was a bug. But that would have been even worse for her. Friday was her last day in the school's nursery, so could have caught something then?
We have tried giving her Dioralyte in various forms but she keeps saying her drink is yucky! We've even add it to a large part of orange juice, but she says she can taste it. Any tips?!
She became much better yesterday afternoon, and ate all her dinner and had a gap of 14 hours between a bowel movement which was a bit more formed this morning.
Unfortunately speaking to that out of hours doctor early on Monday morning spiked me further because he said 'it could be the start of something'. Didn't help that I'd barely slept and my anxiety was already high.
Throughout all my IBS troubles a few years ago, I never had blood (maybe once), so seeing those specks really threw me over the edge. Plus this was a very nasty bug if that's what it is.
I'm hoping she's getting over this now, as she's much better again this morning, touch wood.
And I'm sorry for winding other members up again. I haven't had a major panic over health issues for quite a while now, so I'm quite disappointed how I handled this situation. Even though I had a very similar bug (or food poisoning) in christmas 2019, I couldn't reassure myself that this was probably the same thing.