Hi,

Your little one is acting like a really, really normal baby. This stage won't last very long.
Many babies spend a week or two "sleeping off the birth". This fits in with what our society considers to be normal - so visitors peek into the crib and coo "oh, what a good baby" And by about 2 and a half weeks we are just quietly congratulating ourselves that it's because we are "good parents" Then they wake up - and we go into a spin. But, a good baby is a baby who demands, loudly and often, to be fed. So on those grounds, you have one of the best.
Two weeks ago she was in your tummy, rocked by your movement, fed continually, hearing your voice, your breathing and your heart. All that has changed. The closest she can get to what she has known for her entire existance is being in your arms, at your breast, next to your heart. Gradually, she will adjust. Remember the arsenic hour? (OK, hours) it's that period of time in the evening - a few hours, when they, yes, need 8 boobs to get to sleep. Now we call it cluster feeding - nothing to do with you, by the way, it's them. It's their scratchy, irritable time of the day.
I wonder if she has been weighed yet? Back to her birthweight? Feeding 8-12 times in 24hrs? Lots of wet and pooey nappies? Then, she's doing fine. As others have said, with a toddler around as well, a sling can be a lifesaver. Don't be afraid to pop her in bed with you if your are really exhausted (as long as you are not drugged or drunk) The first 6 weeks or so are tough going, but she'll settle, and you'll get through it
Regards
Barb