I am sorry that this will be a brief post and I am grateful to all of you who have taken the time to offer support.
Roisin has had an adverse reaction to Ketamine and is displaying symptoms of having had a bleed on her brain. I am too upset to post details, I hope you understand.
Also, what has happened could not have been predicted, it is rare and there is no blame to be apportioned to my Vet. Doing that would be totally unjustified.