The Cymbalta appears to be working! I take 60mg, and now that I'm taking it with my dinner in the evening the nausea as more or less disappeared and it might even be working better. I've gone almost 2 weeks without any significant pain (knock on wood). Still some side effects, but nothing of big concern. It has also done wonders for my anxiety and general mood.
The only other thing that has helped my pain in the past is Percocet (low-dose oxycodone). It would knock me out, but I'd sleep well and wake up feeling fine. My doctor is currently unwilling to prescribe opioids though (understandably) so am trying to find other options for the bad days, even just something that will let me sleep soundly.
Muscle relaxants help slighly, if just to loosen up really tight spots.
I also take B12, D, Calcium/Magnesium daily, Iron occassionaly (should take it a couple times a week at least but I forget), and take probiotics and digestive enzymes. The B12 and D helped me get through the winter without the SADs this year, and the Cal/Mag is helping my twitchy muscles.