What color is her poop? You probably don't need to block feed otherwise it could mess up yout milk supply which sounds like it's trying to regulate.
As for being empty, the breast will be really soft and may become more 'floppy' and saggier looking than the other. That's how i tell. DH paughs at me for grabbing my boobs before nursing to check which one is fuller lol.
Mama to my wonderful little DS April 5th, 2011
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