Dear Jan, I have saved your earlier request on info on Joint and Bone Pain w/ bf because I too was curious. I suppose I also remembered my aunt who had a form of Lupus that first manifested itself like arthritis. Lupus is also a disease that may come out of remission and be more severe with pregnancy and breastfeeding. Since you didn't mention any problems w/ pregnancy and pain there may be no connection and I am only a lowly nutritionist so I cannot give you a professional opinion. Waiting with you for more comments and wondering what this mother's physician thinks.... Please let us all know when you hear the outcome! Natalie Shenk, BS IBCLC Private Practice LC in Findlay, OH where I have enjoyed getting to know one of your recent Chicago LC students, Christine Wenger. :-).