My Mom has "cheated" death so many times. Has anyone else experienced this?

For 2 1/2 years now, my Mom has "cheated" death. Please don't think my words are harsh, but that is the way it has been. She has been in the hospital for a variety of different ailments and always snaps out of it, even when the doctor has given up on her. Kind of like, she is not going to make it and call the family in. I never thought about it until I was getting my hair done the other day and my hairdresser was asking about my Mom. She said the same thing had happened to her grandmother and she snaps out of it every time on more than one occasion. Mom is 94 and you have to wonder how many times this can happen. Each hospital visit and illness takes a toll on her and especially myself. When we return home, our quality of living goes down hill big time. I was just wondering if anyone else has experienced this other than myself. It is really frustrating to get down to mourning someone that is about to pass away and then "Bing" they spring back to life, only to have to experience it again in the near future. Please don't think my words are harsh, because I love my Mother dearly, I just don't know of any other words to express it. Thanks!