What is going on when she exhibits the facial twitches she demonstrated for me?

This is a visible demonstration of spirit manipulation of the body when she allows them to take the reins for a time, so to speak, and they will put on a display of their ability to manipulate nerves and muscles. This simply needs to be blocked and denied through preventing access. What has happened is a kind of vulnerability developing to allow connection with outside consciousness, which, in effect, is what is going on. Even though the spirits are technically housed within her energy field, they are a separate consciousness and not truly part of herself. When signals and messages and information by any kind of energy from these interlopers is allowed to impinge on her being, this opens up many possibilities for greater manipulation, none of which will be helpful. So the first order of business is getting rid of the interlopers and then bringing in healing for the perturbations that have increased her vulnerability. That is a kind of weakening that needs to be shored up, to help her stand strong going forward, and will be the first order of business with the healing effort once the removal of onboard spirits is complete.