Those that say cancer never hurts have not had cancer. Lol, although it is true many times there is no pain, mine was also on the chest wall and it was quite painful. Then when I had pain again in that area, the oncologist who was retiring (thankfully) said “then it can’t be the cancer because cancer isn’t painful”. Generalizations like this are unhelpful and lead to a ton of worry.
Rest assured, yes these tumors, even small ones can be painful, if they are sitting on a nerve or encompassing one, and there are too many nerves for them to always miss them. Mine was painful and I am 20 years, still here.
Yes, we have all waited and we have all worried, but try to breathe and distract yourself as much as possible as it gets closer, I know it gets harder.
What surgery are you having, lumpectomy, or mastectomy? Node dissection, sentinel, or axillary?