Just an update, we have arrived home. Wife is feeling a lot better. We were given the nasal spray to try, the injection helped for now...the spray is for when it wears off.
Importantly we have an appointment with a nurolgist on the 6th Dec and from this they can set up a treatment plan, including the oxygen. It's usually an 18 month wait on the NHS but they were able to fit us in which is great.
During this appointment I will listen to the advice and I will raise the issues of vit D and verapamil. They will probably not give advice on mushrooms etc.
I will update this thread as we go, a huge take away and encouragement is that so many people can survive this and live a quality life.