When did the spot begin to hurt? You say the biopsy itself was painful, but after
the biopsy, was there a period
of time when the breast did not hurt? Are you saying that only in the last few days, it began to hurt again?
because if the latter is the case, this may be a case of the nerve endings beginning to heal, if one was cut ot injured, and this pain, (if it's from the nerves) usually begins not right after the surgery, or biopsy, but later, and when they start growing back?