question: My grandmother has had a pacemaker for about 4 yrs or so. During her last check up in June they told her it looked like she had about a year left on it. How will I tell when it s about up? The reason I am asking is because over the past few days she just falls asleep at the most random time. Example...standing up...in the car (which she never does) What I am getting at is especially today she has slept alot and it reminds me of how she was being when she had to get the pacemaker for the first time. Do you think I should go to the ER tonight?