Hi Chuck; I'm no armchair physician, but I do know that we OC folk seem to get a puzzling array of side effects from muscle spasms to scalp pain...not to mention the chaos that goes on in our mouths. It's meant to try a saint, and I think sometimes there must be a huge crown waiting for me somewhere!
It is good news that you will be seeing your Rad-Onc this week...but if you are concerned, and you have every right to be...call today, don't feel you have to wait.
I used to be a lot more longsuffering before I joined this forum, turns out the Onc team responds pretty well to my somewhat frequent input.
I think we are all happier when we know what is going on in our bodies...all the best to you as you sort out the cause of this pain you are enduring.
Let us know how it goes,
Fran