my baby skipped her middle of the night feed last night and I woke up this morning with full, rock hard breasts. She completely drained one breast - there must have been a pint of milk in it -- but was too full to attack the other. I tried to pump but almost nothing came out after 15 mins, and I am afraid to pump more as my body will get the signal to produce even more milk. What can I do to prevent mastitis? also, will not feeding her at night reduce my supply? Please help!!!