Early baby kicks - normal?

Maggie
I'm 19w3d. I first felt a kick last Sunday during a massage, and it was startling and amazing! It was "radio silence" after that until yesterday (Thursday) when I felt him kick a few times in the morning, a few times in the afternoon, and all crazy-like at night. Now I've felt him all morning, too. 
Is this normal? Am I confusing the feeling with something else? I just thought it'd be a steady progression of noticeable movement.... Not a sudden dance party in there. Thoughts? 😳