progressive supranuclear palsy (PSP)
The decreased blinking, along with a constant raised-eyebrows facial expression, gives the face a fixed stare, characteristic of the disease.
In PSP, the posture is stiff and upright with a tendency to fall backwards...
Ulcers of the mouth...
Coughing....
Pneumonia...
She has all the symptoms.
It would seem so based on what I see there.