Strange white orbs flying around?

There seem to be three different things here, all on infrared. Dust particles, bugs, and what someone referred to as “orbs”. These orbs look like someone is standing behind the camera and moving small beam of light over whatever the camera is focused on. Not sure of the source of the reflection…maybe the infrareds reflecting off of the camera lens somehow ? What is confusing is that it moves as the video clip runs, yet the camera is stationary. As I said above, given this theory, I just adjusted the camera so that it “faced” just a little bit different aiming point, and the reflections disappeared permanently.