haifagirl, I once saw something very similar, I think in an interview/article about Rebitzen Kanievsky. It was basically that a young girl had cancer and she was told there was nothing to do. She went home and decided she wanted to do something, as a form a teshuva, but nothing was good enough. She decided to get rid of all her clothing except for a nightgown which she wore to the hospital. She was given a young medical student because the hospital didn’t want to “waste” a good doctor on someone they were sure wouldn’t make it. She had the surgery and the cancer came out in one piece, as if it had been wrapped in something.
Probably another side, or another version to the same story.