She is a clone and has been a clone for years. They wear out. The interesting part is how this is kept secret or gaslit to all who are in her presence.
They are dragging her into the van like a sack of potatoes.
It appears that way, but you can see her right arm go up when the bald guy lifts it. Then her left arm is raised by the nurse. Impossible if she was cuffed. I’m thinking a paralysis in her right arm causing her to hold it like that.