Sudden active of baby

Suddenly just now when am taking nap when outside was raining, I can feel that my baby move from left to right then right to left again, dunno why super active. Is that normal? Am in 19 weeks 3 days now. Makes me feel worried and woke up from my nap. When am sitting my baby still moving lasted about 5 to 10 minutes. Then gave my baby listen to some music and baby seems like just park on my belly button area. And can feel she just stay and move there.