Should I be worried?

[McBounty]

Hi.

We have has our beautiful two new kitties for almost 2 weeks now. They're 9 weeks old.

We have a beautiful girl and a beautiful boy.
We absolutely adore them. They were the missing piece of our family.

Over the past 24 hours though, our girl has developed diarrhea. It's very watery and she doesn't seem to want to eat much, whereas before, she'd clear her bowl most of the times I fed. She still seems to play, but seems a little tired.

I am so worried I am doing something wrong.

The only change they've had in their diet recently is, last night I put out a bowl of kitten milk. It was all gone when I went back in so she must have had a lot. Could this be the problem?

We have them booked in for a vet appointment next week. We can't get a sooner appointment as there's no vets available for the rest of the week.

Any help would be great. Thanks.

Here's a pic of our beautiful girl.

It could well be the kitten milk. You could try her on boiled chicken, rice and boiled fish only for a few days to see if it clears up. The reintroduce normal food and see what happens.

Yes, kitten milk may well be the culprit, especially if she had a whole bowl of it!
Make sure she has a bowl of water nearby to try and help prevent dehydration. She may not want to eat much today, her tummy may need time to calm down.
If she starts to deteriorate though, or if the diarrhoea continues, I would seek help sooner than next week. Vets are normally good about giving advice over the phone if they are booked up, or if you're not sure if you need an emergency appointment at night/over the weekend).
Gorgeous photo by the way!

I'd nip her to the vet - don't think you can take any risks with such tiny fluffy gorgeousness.

Beautiful girl. Hope she gets better soon. Tell your vet you're worried about her bowel movements and she needs to be seen.