Almost drowned and met my dead Great Grandmother

I don’t believe this and I can say why!! When I was 7 years old I fell into a swimming pool. I was found on the bottom of the pool in the deep end and was given mouth to mouth for 45 minutes (they were about to give up when I coughed). When my parents turned up (this was a school swimming lesson!!) I told them about a lady I had met who told me to go back from the description this was my mothers grandmother whom I had never met as she died when my mother was 9 years old!! I am now in my 50’s and I KNOW there is life after death!!! -JB