Not sure if this is normal, but today my 2 week old has only fed for no more than 10 minutes at a time and has been waking up every 90 minutes or so to be fed. I'm pretty sure she's not finishing the whole breast in that short space of time and she falls asleep after 7 minutes or so, I manage to keep her semi awake and feeding for another couple of minutes but by 10 minutes shes fast asleep and cant be woken to carry on. In 9 hours she's only fed for 40 minutes over 4 feedings.

She's having normal wet and dirty nappies. Is this normal?