I had a lumpectomy in 2005 in my left breast, that breast hurt constantly. I ve been getting mammograms and was told I had a swollen lymph node. Dr. Did a biopsy on lymph node in 2010 and it came back ok. It seems to hurt more when I exercise and use free weights. The pain shoots down my arm and seem to affect my ear. I try not to wear underwire bras. Any ideas of what could be going on. I m 54 and had a partial hyst.