The last two nights out of no where, my son will not nurse before bed.  He will cry and scream until I pump a bottle and give it to him.  Last night he cried for 1.5 hours before I finally figured out the "problem" and gave him a pumped bottle out of desperation.  He nurses like a champ all other times of day though!  Any recommendations or has this happened to anyone else?  I much prefer nursing to pumping!