Is this normal?

Hi, 35.5 weeks along and every so often i’ll see my stomach move in one spot in a rhythmic motion. Not like typical movement where i’ll feel it somersault or whatever. This is like a spot in and out as if u watch someone sleeping and their stomach goes up and down rhythmically.

But here it’s not the same spot all the time but it’s making me nervous bec it’s not movement but not a kick either...

Is this normal?