Pain 5 years after radiation

I was treated for Stage III B breast cancer (3 nodes +) in 2003.  I also had maximum radiation with a boost.
Now I am experiencing pain (not exactly bone pain) on that side of my chest and my back.  It has been for 6 months.  The last bone scan (6 mo ago) was negative.
Is  there such a thing as a severe arthritis secondary to radiation?

[Dennis MD]

Hi.
How are you doing?
Radiation therapy can affect the bones.  The bone somewhat becomes thin and brittle which will be prone to fracture.  
I think you need to establish that the pain on the side of your chest and back is not secondary to any recurrences.  You should go back to your doctor for re-evaluation.  For the meantime, you may take any over-the-counter pain medicine to relieve you of the discomfort.
Good luck.