Oh my goodness Ian, I am truly devastated reading your post, sorry I am a tittle late with well wishes as I've not been on a lot for some time, bpainwise im onut I have greatly enjoyed reading a great many of your posts over the years.
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Make the most of every second you have & try & tick some things off the bucket list, life is for living so get as much in as you are able, it must feel very strange being pushed around in a wheelchair, I'm still uncomfortable using a walking stick & that's been years now, just seems so alien, one moment we are 15 fit & healthy, you blink & your knocking on old ages door.
I know I am not close, but as others have said - if I can be of any help or assistance please do not hesitate in dropping me a message.
Have you considered CBD to help with the pain & movement? I have heard a lot of others saying that it really can help quite significantly.
Sending you the very best as I am otherwise rather lost for the right words.