I think she has bad impression towards the cam after some bun bun told her that it is not a good thing.
Suggest you emphasis the purpose of the cam, not that you don't trust her but it can help to get her job done easier.
I have 4 cams at home but usually I would try to avoid moving it when she is underneath. I understand it doesn't feel good being watched.
But I call home when bb woke up but she doesn't notice.
One suggestion, turn on soft music for bb. This can cover the noise when you move the cam. And this is good that you bb listen to some BB music.