Fetal movement at 16 weeks.

This is my second baby. My daughter will be 7 in October, so I am kind of forgetting what the early movements feel like. I read some women feel bubbles, and it feels like they feel butterflies in their stomach. I’m definitely feeling it more at night, and not so much bubbles, but more like something tiny is rolling around in my belly. It’s not gas, I don’t think at least, I know what gas feels like 😂....but does anyone feel the baby differently than what most women explain?!