@GMF no I haven't changed. I just noticed my boobs are not filling up all the way as they have used to. Coffee affects my milk supply negatively if I drink the strong kind and I drank like 5-6 cups in one day.
@Sylvia that’s interesting, coffee isn’t known to decrease milk supply! It’s recommended to stick to 300mg or less per day though because caffeine does get into breastmilk in small amounts. If you’re exclusively pumping you’ll need to replace pump parts pretty frequently. If you pumped 3x/day you’d replace duckbill valves once a month and backflow protectors every 3 months - but obviously adjust based on your own pumping frequency. It’s also normal for your breasts not to feel as full anymore once your supply regulates.
Caffeine dehydrates you, hydrate and change the pump parts every 3 months. In a few days you’ll be back to over producing.
Have you changed your pump parts recently? You’re still producing the very high end of average plus a bit more, and pumping enough for a bottle each time!