Thank you for all your kind words and thoughts.
The vet felt that it wasn't epilepsy related but possibly deep rooted infection.......though they really don't know. Can open his mouth but can still not close it.
However, after pain killers and more antibiotics he is more settled and has eaten and drunk. He really is amazing but we just don't know how much longer he can go on and we certainly don't want him to suffer.
Vet said to give him 48 hours - if he is still not well though we have decided to go home and take it from there.
Home is certainly the place we all want to be!!
Thank you again