Has anyone ever had this problem. I have mastitis and altough has cleared quite a bit I still have a little blockage. Yesterday I expressed some milk and put it straight in the fridge but when I took it out 2 hours later I could see little lumps in the milk. I don't express often and never noticed this before is it normal or is it because I have mastitis? Any comments appreciated. Also many thanks for all the advise regarding mastitis it was really great to know that there are people out there who have been through thesame agonising experience and helped me decide that I could feed through it instead of starting her on formula feed.