New pain - other breast - hypochondriac?

Agree with @Flaneuse - my breast surgeon says always take note of something which is painful and gets more painful. Cancer cells themselves don't have pain receptors I understand (the biopsy on my mysterious lump while still having chemo should have reassured me on that point as it hurt and the one on my cancerous lymph node did not) but cancer symptoms can certainly include pain. That said, stabby pains may be more likely to be muscular or nerve pain. 2 weeks is unlikely to be a problem (unless the pain gets much worse in which case escalate the matter). I used to get weird twinges and sensations in the 2/3 weeks leading to my annual check - that was certainly all in my head, pure anxiety. But it does get better over time. Best wishes for a reassuring result.

@JoeyLiz  We're all entitled to be a bit hypochondriac. You're not being silly. Let's hope it's absolutely nothing. I asked a surgeon in December - "Why do I get occasional stabbing pains where my left breast used to be, and in my right breast where the papillomas were excised?" (11 months after surgery). He said, "I don't know. We don't know."

BUT: "Cancer isn't painful" is rubbish. It's been documented somewhere that pain is associated with Invasive Lobular Carcinoma and I certainly had it. I had a 12 cm tumour in my left breast, and although I only experienced tenderness when I removed my bra at the end of a day - a sort of relief from pressure - as the months went on after diagnosis, I sometimes had dreadful throbbing pains that lasted a long time, or sometimes literally as though I were being stabbed over and over in the breast. One day a few weeks before surgery I was bending over loading the dishwasher and it happened, so badly that I yelled out, "F***!!!" with each stab. Pain BEFORE surgery doesn't get talked about, and it should be acknowledged.

Of course, let's hope your pains are of the "we don't know" type - maybe damaged nerves or blood vessels readjusting.

We certainly gain a heightened awareness of our bodies. 
Definitely monitor as suggested but only you know your body and the worry of similarities to previous
Trust your medical advice but also if the pinge of discomfort is overtaking then trust your instincts and ask for a consult


Take care