I've been pumping for a couple of months, and one my milk separated, it was still cream-colored, and had a ton (1/2 inch) of cream at the top.
Last week, my milk went from that really rich color and cream ratio to light-blue with just a ribbon of cream at the top. I thought it was because I got sick and was so tired, but it hasn't gone back. I haven't' changed how I've been eating. Was that my body changing to accommodate the baby's need, or did something else happen?