Help! I'm a working mom of an 8-month-old and have been using my medela pump in style advanced to pump at work. However, over the past few weeks, it seems like the pump has completely become ineffective at getting the milk out. I've replaced the membranes, tried pumping only one breast at time, tried dialing up the suck, and tried pumping more frequently. NOTHING HELPS! I know it's not my supply--milk is in there, and I'm able to hand express after trying with pump no problem, but hand expression is not efficient for me to do at the office.
ANY SUGGESTIONS?! Thanks in advance for your help. [cross posted in other groups]