Oh Jack, so very sorry to hear about all your problems. I'm pleased to know that you're on the mend though and I wish you well with your RT. As you say, never take health, or anything else, for granted.
I agree with you about the NHS. It is very much maligned but I have only the highest praise for all their staff and for a very difficult job they have to do.
If we don't speak before Jack, I wish you a very happy birthday and, of course, a 100% recovery in you health. XXXXXXX
P.S. Let us know how you progress won't you?