Movements?

I’m 36 weeks and wondering if it’s normal for me to not feel any movements at all from baby sometimes during the day. Like maybe 2 or 3 hours will pass and I’ll realise I haven’t felt anything but always when I focus or rub my belly or lie down she will move lots and I’ll always feel lots of movement by the end of the day but I’m just wondering if it’s normal for her to be so still for long periods?