Into: Hello all - I have a beautiful 15 weeks old (today) baby girl! She was born at 39 weeks gestation. No reflux, no colic, good weight gain, exclusively breast fed (with use of nipple shield since day 2), I pump to store (over-producer), annnnd she has been sleeping through the night 11pm-5am from around 5 or 6 weeks of age

I know - I am incredibly blessed!
Our sleep got all sorts of messed about beginning about 2 weeks ago (Wonder Weeks App said she was in a leap). Great, so that passed, and in the past week she has been trying to get back to herself with 7-8-9 and even one TEN hour straight run through the night! :0 whoa! And then suddenly last night, fed at 9:30pm - awake for feed at 1:30am - awake for feed at 5:30am - and again at 8:30am..
It's not so much that we had a "bad" night, or an unusual night for us.. but shes acting different today

Maybe a bit overtired for one thing.. and then also shes not nursing for as long at the breast! Her last feed was at 11:30am and she literally was only on there for like 7 to 10 minutes.. before PUSHING me away and arching her back! I deduced that she was too tired, and rocked her to sleep. Shes still down for that same nap.. I have NEVER been pushed away by her before.. also she should have been hungry? It had been three hours since she last nursed and it's been three hours now since our last short disaster

Whats up with this? Why would she push me away? Could she seriously have been full? Not hungry? Super tired from being up at night? Ugh I'm so confused

She doesn't seem sick - she's smiling and playing. Been a bit unsettled this whole nap time .. but not terribly off.. I'd say she started super drooling on everything about 4 weeks back and chewing on sophie the giraffe with new found vigor.. but I dont see a tooth and wouldn't that be very early anyway?

I'm so sad

I put her to breast she she just arches and starts crying

shes such a happy baby this is SO not like her
Re: Whats going on here..
And I seriously wouldn't worry about one 'off' day and night. Babies schedules are going to change.
Edit for spelling
Roll w the punches and go by her cues. Just bc she's been easy up until now doesn't mean she'll be easy from here on out.