This is not the case she imagines it to be. The problem with the thumb is karmic in nature. There is a parallel life episode with damage to the hand in this way. This is now manifesting into physical reality. She is associating it with her fear of having implants, and that is linking the two things together in her mind. As you know, the implants used currently are very small and are not implanted in areas of the body where there will be a consequence that gets noticed. This would defeat the entire purpose of having a clandestine monitoring or programming device within the body. So this is her mind creating an issue because of inner emotional conflict and fears. This simply needs some healing attention.