23 weeks and no kicking

Charmia

I first felt her kick at 18-19 weeks & it was pretty consistent but then after my 20 week anatomy scan she got less and less consistent its like she barely does it now & I don’t wanna worry it’s just i shake my stomach a little , I rub it , I lay down , I sit up .. etc just to get her to move to see if she’s ok and she doesn’t so what do you think it is ?