Missing Horse Near Delta, British Columbia, V4k 3N5

I got Misty from a lady in Prince George BC ( Hixion  ) She got Misty from a lady in east Williams Lake BC for board owing. She paid 1 years board for Misty . Misty was left behind here in Williams Lake. Not sure of her whereabouts before that. Misty rides but all most like green broke. She is difficult to load and dunks her hay. She has had her teeth done so its not teeth related she can be difficult to trim on her right hind. I think she has had a foal. I have contacted vets, boarding stables, farriers and breeders in the interior of BC. No one recognizes Misty that is why I'am reaching out threw you.  Misty could have come from anywhere including  the states. Horses can move around. I am just interested in her past handling, training  and if she does have papers.