Re: Supply, Flu, Formula
What kind of pump are you using? Perhaps switching to a better pump for a while would help your supply. Breast compressions while pumping will also help. To take advantage of letdowns, try pumping one side while your baby nurses on the other.
20oz is a lot for a baby to take during a normal work schedule - most infants drink 9-15oz or so. If baby's not on slow-flow bottle nipples anymore, put her back on them. It's quite possible she's being overfed at daycare, which means she isn't nursing much at home, which hurts your supply.
There are things you can do to increase your supply - eat oatmeal (not instant), take fenugreek 3x/day, 3 pills each time, same thing with blessed thistle, there are prescription medications for other things that have a side effect of sometimes increasing a mother's supply, pump more often, get a better pump (rental!), drink water (especially since you've been sick lately), nurse as often as baby will take it, pump in the middle of the night (mothers supply is often higher then).
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