I finally heard from him this morning.
He had an variety of x rays and a PET scan to ascertain what has happened in his head and they have decided that he definitely had a bleed and what now definitely looks like a small stroke. He has some damage to his brain, although it is small and confined to a small area where the bleed was. They are investigating what caused the bleed, and think it may well be a weakness that has been there for a long time and was just a"bleed waiting to happen".
The doctor has told him to reduce his stress levels and to take a bit of time off work, although I'm not sure the two are mutually compatible for him.
They say the amount of damage is small: and that the loss of memory and difficulty in finding words will become less and that the pain in his head will go.
When I spoke to him , he sounded much better, more positive and back to his normal confident self. He said he was on even stronger painkillers for now, but that he would be leaving the hospital within the next twenty four hours, all things being good on more blood test.
I am a long way from home and from him, but I am so happy that things are not as bad as I feared they were, and for that I am very thankful.