Thanks for all the replies.
She has Functional Neurological Disorder (FND), but it feels like it's a catch-all term for when they don't know why somethings happening, and it's an endless line of "everyone's different" when you ask any questions, extremely frustrating, wife's condition now is that she can't walk (can't feel her legs), can't feed herself, keeps shaking, can't talk, is incontanent, and now losing the strength in her arms, 3 months ago she was a fit 53 year old carer who woke up to find she couldn't walk, it's all been downhill from there, and the really frustrating thing is, they say it's probably caused by stress, this despite her life being easily in the best place it's been for, well, forever, just back from holiday, just bought new car, finally put previous health issues long behind her, started her own business and got that to exactly where she wanted it, both loving the jobs we do, and we finally started saving money.
Not sure what The Patients Association is, I'll look it up.
I think I looked at healthunlocked earlier, and when using their search function I got no results for FND or Functional Neurological Disorder, but I'll try again.
I've joined the 'Stuff that works' website (OMG, literally was 100 questions), looks really interesting and already chatting with a few people.
Thanks everyone.