Hi desperate advice needed please.
I have a litter of 6 puppies who are 2 weeks old. Two of the pups have just started with diarrhoea, they are still feeding (not as much) and have still gained a little wait over night.
They don’t get stimulated they just stand and projectile diarrhoea comes out.
What could this be cause by?
And what do I need to do?
Should I be calling the vet?
Thanks in advance.

Are they still gaining weight?

Are they still nursing with vigour and otherwise well?

If so, no I wouldn't call the vet.  I would be thinking about the dam and what you are feeding her, whether this has changed, whether she has runny stools, whether she is on any medication and so on...

Yes they are still nursing and very greedy
Mum is fine no runny poo and diet not changed
The pups seem to be picking up and the poo is less runny.

We have also wormed them today.

Thank you for you help x