Baby movements with twins

Keke • Mama of Daisy Evelyn, our beautiful Rainbow Baby 🌈 after Monochorionic Monoamniotic twin loss
When did you all start feeling the babies move about? I'm 15 weeks and I swear I was woken up this morning by what felt like a flopping fish inside my belly!!! I was laying on my back too. This is my first pregnancy. What are your guys experience?