can I just add in here?>
The bruised feeling - I got that alot! It was just my breasts regulating milk production and sometimes a clogged duct. It was gone in a matter of days. Just keep nursing for it to go away, or pump.
The head butting - you could also have the problem I had. I had fast let down. DS was good to go, but then got frustrated because it wasn't coming as fast as he would like. Latch on again and keep trying, or else pump first, for a minute or two till the letdown subsides, then latch her on. Then your dh can offer that milk later. Make sure you pop her on again after that bottle to keep production up or else pump while he is giving her a bottle.
Pumping/Yield - I agree, it is not a true measure. I could pump like crazy, but my mom, who also have overactive letdown and too much milk (like me), could never pump more than an ounce

. I could get 4 in less than 2 minutes, so there you go!