First time posting. Hope this makes sense..

[Neko150]

I think part of my problem will be proving my history. I haven't used any meds since I was 25. I have no old bottles or doctor records. ( who keeps those things for 15 years anyway ? )

If you just explain yourself to the doctor like you have here, it shouldn't be a problem. There isn't a "secret method" of successfully getting a card with a physician.