My breasts are sore. Both breasts in the same place. On the outside, I have felt my armpit for swelling , in case it is my lymph nodes but no lump or hardness. they keep enlarging and are sore in the EXACT same places. What could be causing this? I have been under a lot of stress, My thyroid is out of wack. I have Graves disease, right now I am hyper thyroid, Dr is trying to get me on correct dossage.