I've been in pain for months, but my mammogram shows no cancer. I can't be sure, but there seems to be a large area of general swelling in my armpit, which I can feel when I raise my arm.  I don't think this area appears in mammograms, so it could be in my lymph gland.  I'm going back to my doctor because I want to find out why my left breast is larger and tense with a prominent nippled, unlike the right one.  If I just say "Oh well, I'm post menopausal and this is not unusual" I could find out it's any number of serious conditions which, if ignored, could spell serious consequences.  Phoning GP because I really cannot go on like this.