she got to ours about 5pm friday i knew she was a really shy cat and she's proved it lol altho she did have a little look around last nite and she has moved from room to room the other two have lost interest in her and left her be she isnt interested in food or drink or going to the loo how long should i leave her before its time to proper worry ?

How old is Nala?

Do you know how to check for dehydration?

I wonder if Nala would feel happier confined to a room on her own away from the other cats for a while until she feels more confident?
Try putting her somewhere peaceful where the others cannot go with a litter tray and food, try her with a bit of tasty chicken and just leave her to settle herself until she shows signs of being confident and wanting to have a look around further in the house, the cats will get used to the sounds and smells of each other too in a much less threatening way, keep persevering I am sure that she wil come out of her shell, she just needs time.

hi she's 10 months spoke to the foster lady and she seems to think she'll come round in a couple of days she was lickin some drops cat milk off my finger yesterday but dont want to force her to be honest she was in foster home from been a kitten and she is nervous to start with so am just thinking she really traumatised by it all

the only option there would be my little boys bedroom the other two sleep with me at night she tends to go back and hide in there anyway altho there would be odd times the door would be open dont want to isolate josh too lol but at least when i'm at work which is part time i know she would be safe it just feels cruel shutting her away when she used to the hussle and bussle of her foster home but i can see where you coming from she loves been stroked and doesnt shy away from me but she obviously very upset by the move

In all likelihood the size of the space available for her is contributing to her panic at the moment. Cats in crisis usually do much better in a smaller space, so I'd think about reducing her space and making sure that there's food, water and a litter tray available to her in that space.

If you'd like to borrow a large crate I've got one that's not being used at the moment. Cover it over with a dark blanket so that she's in a little world of her own which all smells nicely of her and she doesn't have all this new and scary space to deal with. If it makes you any more comfortable then you can leave the door open, but a cat in crisis is more likely to choose to stay in the space than escape elsewhere.

If you'd prefer not to provide her with a nest then maybe give her some space under a bed or in a cupboard which is hers and which she can access food, water and a tray from. Visit her in her space and bring her out into your lap for snuggles then allow her to go back there. That will give her the best opportunity to get food in a way that he feels comfortable taking her attention off other things to eat and drink.

If she's 10 months then she can afford to be away from food for a week or two without it being an issue. Water is another issue though- check for dehydration every day and get her a water bowl very close to where she's hiding.

To be honest Medusa I have crated all of my kittens when they arrived here for quite a while, they only come out when they feel confident and ask to come out, (obviously they do come out when the dogs and other cats are not here I don't lock em up and throw away the key :D ) I find crating helps on 2 levels, the other animals get used to the new one without worrying about any fights or anything, and the new animal gets used to the smells and sounds of the house, and all can sniff away and inspect each other quite safely.
I have never had to crate a kitten for more than a couple of days, and usually a few hours is enough.
I always crate new animals at night though, as I want to be sure that they are and feel safe when I am not there, which also helps with house training as they learn to always use the litter tray.

Feel so cruel doing this when the other two are playin out in the sun:( but she hiding under joshes drawers altho i thought progress was been made yesterday she was on his windowsill and jumped on bed without any fear issues so i have took a litter tray up and some dry food and water and will leave her in peace :( how long do you think she should be left alone for or just play it by ear ?