Well it's just a thought. I know a few people who passed milk allergies onto their babies because they drank so much pasteurised milk during pregnancy and breastfeeding - that's why I thought maybe it's coming through your breastmilk. If you want to find a source of good quality raw organic milk from grass fed cows see if there is a local chapter of the Weston Price Foundation in your area. A lot of them have set up co-ops too so you can access good quality organic food at reasonable prices. They also do loads of research into how the food is produced to be sure that it is of the highest quality and nutritional value.