LO is suddenly a gymnist during sleep

I've been cosleeping with my LO since birth. She is EBF and will be 6 months next week, and for the past few days she has turned into a wild animal in the night. She used to be a peaceful sleeper, waking to nurse gently and pretty much sleeping through the night. Now she grunts, whines, cries, rolls over onto her belly (with her head up - as if she's getting ready to crawl), flails her limbs, and feeds aggressively. I want to believe that this is normal and developmental, but is it? She is otherwise a happy, healthy, bubbly baby. I am wondering if I will ever had a peaceful night's rest again😅