Best wishes MarthaTuesday!
As you said "shit happens" and as my Grandma used to say "health is wealth".
Not worth the risk or effort to travel when it could have made matters worse, and you might have been suffering at your destination.
There will hopefully be another opportunity to see the Stones, but most importantly for now is to get well soon!
_____________________________________________________________Rip this joint, gonna save your soul, round and round and round we go......