Bigs hugs, sounds like me and DD2 but it started for us at 5.5months. I ended up going to a osteopath and got her checked, she did some work on her belly, left shoulder and head. Made a big difference. The other thing I tried was letting DD2 sleep on her side or belly. The first time I put her to sleep on her belly was a night and she slept for 9 hours and did not wake up once. Now she always goes down on her belly. Have yu tried laying her down to sleep on her belly?

It is hard when you just don't know what happen to change your baby from a dream baby to something completely opposite. I hope this never ending wonder week finishes up real soon for you.

Wanted to add, my DD1 was diagnosed with silent relux at around 3 months, have you noticed any times she is almost vomiting? Maybe get her checked out by your GP too.