I am having pain in my left breast. The best I can describe is it covers a large area on the left side near where it attaches to my chest. It began a little less than 24hrs ago as a very slight discomfort, was worse upon awakening, and is now very uncomfortable. It is a painful ache like a bruise or pulled muscle but there are no marks and has not been any trauma. A supportive bra and tylenol has made the aching tolerable. I am 32wks pregnant and have gestational diabetes. No other health problems or family history of breast problems.