Just to let you all know that we decided to have Mist put to sleep.

I stayed with her the whole time and we've brought her home to bury her in the garden. No doubt Jess will go next to her when her time comes.

The vet said her heart was a little slow and her temperature slightly low and he thinks that her heart was unable to speed up causing the seizures and we also reckon she had neurological problems...was showing signs of cognitive dysfunction etc...so there wsn't really anything that was likely to make life better for her even though she still enjoyed her food to the last.

Thanks everyone for your good vibes.