Your best bet is this....you will qualify under pain, first of all. You go to your MD at least 2 times complaining of your pain that you feel. Have them document the pain in your chart notes each time you go. They can even prescribe some pain killers for you for the time being, but the idea is that you are getting your medical records in order for OMMP.
Once you have 2 doctors visits within a short time documented, you no longer need your doctor to prescribe anything. If they do not want to prescribe marijuana, and you have the info documented on your chart notes, then you need to take those chart notes to someone else.
For me, the "someone else" was MAMA. You can take your chart notes and any other medical records you have, have MAMA look over them, and they will tell you straight up whether they can help you get a card. They have a doctor on site, and if you have the chart notes, they can help you. They usually will not even make an appointment for you unless your records justify getting a card. That way, you do not spend any money paying MAMA unless they can get you a card.
They are very nice people down there, and very busy. I suggest you call them ASAP to get the ball rolling. THCF is another clinic that does the same thing, from my understanding.