Hi Lesley :)
With the rads, I think it depends on how many you had the first time around.. I recently had 5 zaps to my left hip and was told that in time if needed could have another 5 but when it came to my new primary on the right (first one on the left) they did not wish to radiate again as my heart was of possible concern from extra treatment.. but did not say that the same side could not.. mmm.. LOL that is not very helpful is it !!!!
With the neuropathy, I would be looking closely at the Arimidex rather than the Xgeva.. I had all sorts of issues on Femara (similar). Found tai chi really helpful in easing it and also panadol osteo. I had slowness, stiffness, aches and claw hands and sore feet.... oh the joys of treatment :)
I have been on Xgeva for 2 1/2 years now and in the beginning got a bit of large bone pain the day or so after it but no more than that.. and it is funny you should speak of teeth.. mine are driving me nuts but unfortunately i have fractured them and both have now exited stage left!!!..
With the teeth, I found using a sensitive teeth toothpaste twice a day and also using a product i got from my dentist called tooth mousse really really helpful.
hoping your Oncologist can come up with some answers and soon
Cheers, Sharon (pink66)