Reading her story, I doubt it was natural healing. I believe the treatment worked somewhat.@DebInAustralia had good results from some other clinic but wasn't sure if it was really because of the stem cells or just natural healing.
Fun fact: The doctor who carried out the treatment is a loose cannon. I researched him: a former beauty surgeon who turned to stem cells for money. He got a client killed due to unprofessionalism.
I'm personally not interested in stem cells harvested from my own fat, but I think it could be an option for those who want to try stem cells without paying too much.