Is it normal to have chest pain after breast cancer?

[Steph C]

Had a lumpectomy and radiation and chemo treatments, finished 11 months ago. At first the pain and stifness was to the effected area now I am having chest pain on both sides with more pain on the healing side. I am 41 and very active.
I lost my job and insurance when I was diagnosed, so I don't have easy access to doctors. Had a mammogram 6 months ago and it was clear.