My Sister Has Been In The Hospital For A While

My sister has been in the hospital for a while and recently started gripping and ungripping her hands, does not know what she wants,gets teary eyed and very agitated. She has a diagnosis of pancreatic cancer but none found at this time, has had a whipples procedure and many other complictions. This does not happen all the time. I feel badly for her and the doctors have not addressed this.