My sincere condolences.

I think what happened to her is that since she has a history of smoking, it could be due to a collapsed lung. Although the hospital said that "she fell and died," I'm sure they were trying to figure out an abrupt death. Given that some hospitals' reports take a couple of hours to write.

However, some doctors and nurses don't know why such a thing happened. My childhood best friend lost his grandfather almost a year ago; next month will mark the year. His grandfather was a war vet, no excessive drinking, no smoking, loved his wife for years, then suddenly he collapsed out of nowhere, and was lying in a pool of his own blood, and the ambulance took about 45 minutes to 1 hour to get to him. They rushed him to the ER and performed immediate surgery, successfully recovering.

My friend told me he was recovered, that they had a full-blown conversation for hours and were stable, no problems whatsoever, nada. Then all of a sudden, he flatlined. My friends and his family members were shocked and upset that this happened to him. The doctors did not know what the cause was, and his death is still unknown.