Since early this morning I have been having some pain in my left breast; just a little zinger, not very severe or hurtful, about every 5 or so minutes, coming directly from my left breast. I was not too worried since I resumed my twice a week swimming regimen after a two week hiatus, I thought it was a muscle ache from not swimming for a while. Now it is 6 pm and I still get the aches, but no other symptoms, no dizzyness; I feel normal. Should I see a doctor?