I had some discomfort about 1 to 1 1/2 years after radiation. I was worried before my next MRI, but it was nothing. I asked my doctor and she said that the discomfort could be permanent. However, I’ve noticed since then, it has lessened and I hardly think about it anymore. I do not think it’s connected to a recurrence. From what I read, this experience is quite common. I also have permanent nerve damage under my arm. That was due to the surgery and removal of two lymph nodes.