Sorry Ive not updated you all on this, its been so busy this week!
Purdie is fine now
The runnies stopped almost as quickly as they started. I decided to stop her cat milk, and the problem has cleared up. She does however love normal cows milk, which she has a tiny bit of every other day, and its not caused any problems.
We have had her for 2 weeks now, and shes settled in very well. Emma, our dog cant stand her. She bites her all the time, but as I say to my children who think that Purdie is being hurt, that its just her defence system (the hissing and spitting) and that a cat is far better equipped than a dog, to defend itself!
Other than that, shes doing great, and is very well behaved. Shes having her first jab next week
Thanks for all the replies