If my pump seems to be failing me, am I needing to replace the parts? The sensor is always telling me it’s full even at the start of my session when I only have 1 oz pumped. I’m not moving around and I have taken apart the pump to ensure everything is connected correctly but it doesn’t fix the issue. I’ve only been using it for 2 months (not exclusively bc I’m nursing more than pumping). These pumps aren’t cheap by any means so I assumed it would’ve lasted me at least 3 months before having to replace any parts…? Thoughts please, I’m feeling frustrated and defeated. 