I wrote this as a possible scenario in a different reply.

Nancy was AWOL for almost 2 days. When she returned, she had a proxy continue to fill her speaker role. She was also being shadowed by a group of female agents. Maybe shes a feminist and they were her protection or maybe they needed female agents because she was being escorted while in custody. Forward to today, those same agents meet her immediately when entering, usher her over and away, tell her not to talk to anyone. She relies I won't.

Would you consider that normal? To bark demands like that? To the SotH? The claim is not she was arrested right then and there. It's that possibly she has been in custody, still fulfilling the duties as congresswoman, under "house arrest".