Morning all, thanks for all your replies
Well she slept well all night (me not so well!) and is her usual bouncy self this morning
No sign of the screw in her poo
so I'll check the next one! The vet did say it may take a few days to appear. She didn't advise an xray at this point as she thinks it should pass through.
Meanwhile, I'm going to pull all the furniture out and have a good look now it's daylight. She has a groomers appointment today, just a shampoo & tidy up. As she seems OK in herself I'm thinking I'll still take her? The groomer is just up the road from our vet and I will let her know what has happened.