Witching Hour Supply

My babe sleeps like a gem during the night and day, except from 6-11pm she is awake fed, bathed definitely full.

Now I put her down hoping to get her to nap for a little bit she just wants to eat and she gets fussy on the breast I had some milk stashed in the freezer and took it out to feed her and she took 140ml I was shocked because I thought she was full.

I feel like my supply drops and is not enough for her during her witching house what can I do?