Okay, so today the oncologist also mentioned the possibility of it being fat necrosis, but she was still concerned. She wanted to biopsy it asap, like right then and there, but since it was 4:00 PM on a Friday, no one was around to do it. She said it still struck her as bizarre and the sooner we figured out what it was, the better. She also mentioned that the area around the left breast was "ridgy." Who knows?
She had me wait around to see if I could get an appointment for an ultrasound for next week, but it was kinda impossible. The receptionist said there was a slim chance I would get called, if there was a cancellation or something like that.
So...more waiting! Yay!