how to talk to my parents about ommp?

[Tyler]

okay so i want to apply for a ommp im 16 years old i have scoliosis 16 degrees ive tried chiropracting and it didn't help at all they put me on vicodin for a bit but i hate taking pills i smoke weed but i dont want to get it just to smoke but everytime i smoke i feel alot better everytime i wake up to go to school i can barely sit up cause im in so much pain ive tried getting my parents to take me to the doctors again to get some sort of pain med but my parents think im going to get addicted to them so they wont make an appointment and my parents want me to feel better but they hate drugs so i dont know how to talk to my parents about it but its really the only thing that helps and i feel safe doing so can anyone give me some tips on how i can talk to my parents about it