Cheers guys, unfortunately cerebral ataxia is where the cells in the cerebellum area of the brain begin to die off and can't be replaced.
It means balance, coordination, strength and speech are all compromised and currently no cure, so not good. Carole's twin sister has also been diagnosed with it, so it's taking a bit of adjusting to. What it does mean is we need to make the most of every good experience while we can. Thanks for your kind words though chaps. Appreciated.