Is there extraterrestrial involvement creating the voices and other bodily sensations?

There indeed is extraterrestrial involvement, and heavily. This you saw intuitively, but doubted. We understand you are wanting to be careful and scrupulous and not always assuming the worst and jumping to conclusions, but keep in mind the intuitive impressions you get during normal functioning do not equal in precision and intensity in the knowing what will be shown when you quiet your mind and begin an intuitive inspection of the situation and have a dialogue directly with Creator. That will be the surest way to receive accurate impressions that will be definitive enough to help you with a strength of conviction you will not have from a fleeting impression gained intuitively, on-the-fly, so to speak. This extraterrestrial involvement is because she is a person of great interest to them. They want to keep her constrained and sidelined. That is the reason for this campaign of harassment and why it seems to be a higher-level undertaking. So it is not an outside dark force that is using black magic. It is an extraterrestrial mind control manipulation. That is what is putting these thoughts into her head and is being beamed in from outside sources. This will take time in order to have an appropriate divine safety barrier established. After all, you are going up against the Extraterrestrial Alliance here, beings in the physical, and that is harder to rein in entirely as they still retain free will privileges up to a point. So we are working earnestly to redirect their focus and eventually lose interest in her. That will take time. Meanwhile, the best you can do is to keep the healing work going and rely on the Lightworker Healing Protocol and its repeated applications to shore up her line of defense and to work on the interlopers to eventually influence them to stand down and leave her be.