+1 to Rockslinger. I've also got pain issues and the doctors are more than happy to push pills at you.
Double check the drug side effects on Wikipedia - always always always do this. Many of the pain medications at the high end have nasty side effects.
SSRI and SNRI drugs are prescribed off label for pain management and can cause *permanent* brain chemistry alteration.
Opiates have the more obvious nasty side effects.
Your GP should be able to get you into a pain clinic. My experience in the burbs has been - stay the fuck out of the burbs. Access to pain clinics in the downtown core seems to be much better. Try one of the hospitals in the university health network
http://en.wikipedia.org/wiki/University_Health_Network or Mt. Sinai downtown.
Pain clinics should be covered by OHIP if you have a referral by a GP. Some procedures may not be fully covered, it really depends on what you need.