Yes, EC all too frequent and hard to discover the truth when it happens. I've had two similiar experience with my family and my own experience of death knocking on the door. I nearly died a few yrs ago because of over medication during a "simple" pre-surgery test. After I recovered, the doctors kept trying to tell me it didn't happen and it was all in my mind! Excuse me! I was there, in my mind...they weren't. That's another story and I won't go there now. It's just away to coverup their mistakes.
thanks for the link; I'll read it