I'm hearing ya!!!

Ava is EXACTLY the same. Was sleeping through from around 3 weeks, then she hit 3 months then overnight she stopped sleeping through. It slowly got worse and worse to the point she was waking every hour from 1:30. ATM what we are finding that works is putting her to sleep on her side, some reason she sleeps much better. Only wakes up twice which is a HUGE improvement from before. I can handle 2 times a night.

A thought though...Jazz is co-sleeping and you are still bf. She would be able to smell your milk. I know you are still happy to co-sleep but you might have a up-hill battle if you want to stop feeding her to sleep at night.

Hope things get better for you soon. I know how draining no sleep can be.