Shooting pain in non-cancerous breast..should I be concerned?

[greenacres]

Good morning. My treatment ended 12/2010 when I had a bilateral breast MRI which showed a "probably benign 3.8 mm intramammary node" in my right non-cancer breast" - left was good. Now, I am due for my 1 yr. checkup following treatment in December which will be a mammogram this time. Over the past two weeks I have had shooting pains and sometimes dull pains my right breast toward my armpit. I've done an exam or two and found no lumps or bumps but this concerns me. Do you think I should call sooner than later to ask for an ultrasound or just wait until December. I've also noticed my nipple has been a little itchy lately, but could be due to dry skin. My 6m mammo in June was good - but I have hetergenously dense breasts so I'm sure they couldn't see a damn thing anyway. My next bilateral breast MRI according to my oncologist's NP isn't to be until one year from this coming December cause they just don't think I need it cause I am/was Stage 1 even though ALL my mammo's say dense and even the radiologist says I should have MRI's, my onc's office says it's not necessary. Anyhoo, what do you guys think? I don't want to run to the Dr. if it's nothing, that will embarress me.

Thanks for listening.