If you are bedridden for nine years you do not maintain that weight unless someone is bringing you food.
Considering that someone is probably the person clean up I don’t understand how it goes on and on for nine years.
Hubby was a firefighter for 33 years. They had a guy like this that they made calls on all the time. Finally one day a call came in and they had to cut out the side of the trailer he lived in to carry him out. He was dead.