Baby girl twerking weird

Hello,

Baby girl is one but about 1.5 months ago she started doing this twerking motion with her butt any chance she will get (cuddles, sitting, eating), at first we thought it meant to rock her but she is doing in different situations.

I checked her for worms but doesn't look like she has.

She isn't constipated.

Her stomach isn't hurting her.

For instance, we were eating dinner in our dining room, and she was twerking and spacing out (focusing on a area on our wall) in her highchair for a good few minute and then stop to continue to eat.

The starring off into space is something new, do not know what this is.

Someone please help?!