Effexor is also in the same class of drugs as Savella and Cymbalta- all SNRIs, which are used commonly to treat Fibromyalgia, so it makes
sense that it's been helping you. I tried it years ago, and it caused me
anxiety, but I tend to be more of a high strung Fibromyalgic. Every drug works a little differently on every one and it's nice that science keeps pushing forward to create better drugs to treat the disease.