Just wondering if anyone else has had this problem? I used to have no problem pumping and getting a letdown with it (and in fact I was overproducing for a time) but now for some reason whenever I pump I can't stimulate a letdown. I'm using a Medela Pump in Style. Anyone have any ideas? I'm at the 6 month mark now so would like to be able to pump out some to mix with solids.