Am breastfeeding 7 month old DD morning, night and once in the day. Today have found my left breast is swollen and feels bruised, like it's been kicked. Can't think of any injury reason it would be like this. Bit of info; I have a lump in this breast which I got checked out in Jan - they scanned and said it was a lump of milk, this lump does now feel smaller but swelling is on different side. Also DD has her bottom teeth and will sometimes bite - could this be it? I feel a bit run down but don't have a fever. Any ideas welcome.