Hi, Lucy Towbin and everyone. We think this lady is having the same sort of cyclic (as in menstrual cycles) soreness that many women have - and that it is quite independent of the fact that she happens to be still breastfeeding. Our observation is that it is more likely to happen as we get older, or may worsen as we age. Various suggestions have been made as to why this may happen and what may help alleviate the problem. So far we have had great success in reducing the soreness when women have taken daily supplements of 1,000mg of evening primrose oil and fish oil (both can be readily bought in capsule form). We've also asked the women to increase their weekly intake of seafood. The rationale behind this is that the supplements have an anti-inflammatory impact in the body, and more fish will supply more dietary selenium which is selectively taken up by the breasts (according to a paper written by an Australian doctor with the novel twin interests of nutrition and preventative medicine). Many Australian soils are selenium deficient, so our intake may not be adequate for our physiological needs. (The bigger the fish that the fillets come from, the more selenium should be concentrated in the fish.) Anyway, one woman who was quite desperate with this soreness (but no longer breastfeeding) tried this approach and rang back two months later absolutely ecstatic that she was then pain free after many months of misery. Robyn Noble and Anne Bovey, Brisbane, Australia