Before you decry me as some crazed druggie, please listen to what I have to say. I've had severe chronic back and leg pain for more than 40 years, due to degenerative disc disease. I have had four failed spine surgeries and I've been through two comprehensive pain management programs. I continue to use opioid pain medications; but over that many years, tolerance has eaten away their efficacy.
To this day, the only thing that makes my pain go away (temporarily) is THC. As we all know, THC is the active ingredient in marijuana. Yet, it may not matter whether you smoke it, digest it, or use it legally (the legal medication is called Marinol, by Elan Pharmaceuticals), this option WORKS. While the opioids only put a dent in my pain, THC obliterates the pain. Of course, few of us want to be "high" all of the time. But know this... I am very far from the only one who has discovered pain relief with THC. And I only use it when I won't be driving a car or in danger of hurting someone.
I don't care if you purchase it illegally and smoke it (several US states have legalized possessing an ounce or less), or if you ask your doctor to prescribe Marinol - IT WORKS! People have been using THC for pain and for anxiety for thousands of years. It worked then. It works now. Only the obsolete cultural paradigms of contemporary American society prevent all of us from using it legally every day to fight chronic pain.
Millions of us with chronic severe pain have found wondrous relief with marijuana or its legal THC substitute Marinol. Before you give up on having a normal life again, try it. You might be very pleasantly surprised.
P.S. To this date, there are no severe side effects for this treatment. A small percentage of chronic pain patients experience anxiety, which may be overcome over time. Even then, I'd rather have some anxiety than crippling chronic severe pain.