Hello L. how are you. I am a Breastfeeding Peer Counselor for a local angency and have had 20 hours of training. This can be very common. It all has to do when how often and how long your baby is feeding on each breast. I have also Breast Fed three babies.
I took this qoute from the 'La Leche League International; The Breastfeeding Answer Book, p20 paragraph 2".
"The regulation of milk production is known as "auctocrine" or local control of milk production (as opposed ot "endocrine" or hormonal control fo milk production). Some degree of auctrone control is obvisouly at work, because milk production on a mother's left and right breasts can differ greatly depending upon frequency ans degree of milk removal, which indicates that hormonal levels alone (which affect both breasts equally) are not wholly responsible for the rate of milk supply.
If you wish to change this then you need to have her feed longer on the one that has less. It might take a day or two for it to catch up.
You have to remember that Breast Feeding is SUpply and Demand. You brain only makes what it knows your baby needs and it knows that by you breast feeding!
Hope this helps.
D.; ____@____.com