Sleeping Hell

Our daughter is waking up every night (2am) screaming a and running to the door crying. She says “mama hold me”.

Then she is waking up so so early like at 4:55am.

What the heck is going on?

She has a 9 week old sister that sleeps in the room with her and the baby sleeps better than her!

Is it just the typical too many changes sleep anxiety?