To much kicking? Feels like a small seizure?

Erin • First time mommy🙊. Dangerously in love with her already👑, Excited for our future😚
Now my little girl Bean has been super active but When I'm laying down especially on my left side, I've felt a few times kicking (and or\punching) in a synchronized fashion, as if all four limbs are moving at the same time. It lasts for about 3 sec, then stops. Then she starts regularly moving.... or what I think is regular. If I could compare it to anything, I would say about 3sec of a seizure??? Or some type of a team cheer with all four limbs as if she's really holding pom poms. Im being told the most movement is the best movement. Means healthy baby, and when she stops moving that's when you should be worried. This is my first child. Only happens when in laying down. Is this normal???