Just to let you know, those who ever responded to my posts, and those who read them, that after a long, long illness, my Mum has died. She had been deteriorating over such a long time and of course her death wasn't unexpected in that regard, however her ending was sudden and unexpected, and traumatic. She fought this disease every step of the way, right to the end, so I have to look on it as being the end of her suffering. Her brain tissue goes to research and we shall eventually know, I am told, exactly the type pf dementia she had.