I saw this one about 5/6 years ago: A woman/girl is riding a white horse in the winter (the road/path was icy/wet) and the horse either spooks or slips and the woman/girl is thrown/crushed by the horse. She ends up with some horrible condition that causes her to be in constant agonizing pain. I don't remember how, but she is somehow miraculously cured. It may have had something to do with prayer/angels.

Yes! This case is called "Trish's Miracle." I believe you can find it on "the forbidden site."

I think they removed the episode of it from YouTube but yes, it's called "Trish's Miracle". Such a horrible disorder to have and only so few ways to treat it.