I believe my 86 yr old mother to be at the end of stage 6. The past 9-12 months she has had bouts of drooling while and after eating that just doesn't seem to stop for at least 30 minutes. He voice gets thick and gurgly. These symptoms are showing up now almost daily.
She has suddenly vomited or spit up food also at times but not near as often....maybe once a month. It just comes back out without warning, no sickness or sick feeling.