I am not totally sure... My first thought was that she has too much day sleep. Most babies would need one of their naps capped at that point, but then NW are usually hard to settle and baby is chatty and ready to play.
I was asking how you settle the NW because if you have some kind of prop, like picking her up and letting her fall asleep on you then I'd think she just keeps on waking to know that you are there and this is her way of being comforted. If this is the case then I'd think you are better doing PU/PD and not let her fall asleep on you or rocking or any AP - that is of course if she is NOT in pain. If NW are a new thing and only in the past few days then it could be teeth related as well.
One of the reasons a baby can have an EW is if his first A of the day is not long enough and the first nap comes too early for him, so IIWY I would try and push the first A time by 10min and see if it makes any difference. You'd need to give it 3-4 days to see if it's working, though.
There is more information here about EW:
Early Waking
