Mixing previously expressed?

[lee_bee]

Not freezing at the moment. Glad I can chill and add. I'm starting to get super tired with all the feeding then topping up then expressing. So glad DH is still on leave. I'm only really expressing an extra 30-80ml at the moment, but when I'm only getting the 30, I'd like to have a little extra in the fridge just in case bubba needs more

[onthefly]

It's a hard gig lee_bee! You're doing great.