I can't tell you what is going on, but I can tell you that it doesn't sound normal, and doesn't sound like most breast cancers, either. Have they ruled out infection? That's what I would worry about more than cancer. With the pain that you are reporting, I would think they would make you a priority! That is just my opinion, but it really irritates me when doctors ignore their patient's pain. If you don't get any help from your doctor today, I would seriously consider a second opinion. Is this a family doctor, or a gynecologist? If it's a family doctor, call your gyn.
Wish I could be of more help!
"There's a difference between a philosophy and a bumper sticker." --Charles Schulz