Silly question ...strange movements

[glossyflower]

I'm 32+3 and baby moves around a lot.
Twice now though this week I have felt a really strange vibrating feeling. It's only mild, doesn't move and had only felt it when I place my hands on it, it's not there all the time.
Has anyone else had this? And what is my baby doing to make those kind of movements?
I read that babies can cry in the womb...but I really hope my baby isn't crying!

Whereabouts is it?

It could be baby pressing on a nerve and the nerves twitching.

It could be a nerve, but it doesn't hurt just feels like a slight vibration.
It was low down on the left hand side.
...who knows!