Hope somebody can shed some light on this one..after about 3 or 4 months of breastfeeding my baby I started getting pain in the left breast only. He had thrush and was treated by the pain the breast never went away. I went him on formula at 6 1/2 months (in december) and I am still getting the pain in the left breast. No lumps were found when the doctor did a breast exam. any idea what it could be? anyone experience this before? had the pain now for 8 months, not too bad at first but getting worse now.