So I just started back to work last week, and needless to say, my pump has become my best friend. However, every single time I pump, one side gets waaayy more than the other. I'm talking like 3x more. Is this normal? I've never noticed my DS not getting satisfied from this side, and never had this problem while pumping while on leave. I still get the amount I need, but it's just mostly from 1 side. I've tried switching out the pump and have the same results. Should I be concerned?