With acupuncture it seems to be hit-or-miss. Some report no effect, others say it works for them. I am in the no-effect group. No scientific studies have proven that acupuncture is effective as a treatment for fibro or for anything else. Perhaps for the people on which it works it is a placebo effect, and the effectiveness of placebo (in other words, the mind's belief that a treatment will work) actually has been documented and proven scientifically.
I say, try whatever you want. If it works, who even cares why it works, or even if it is a placebo. If a placebo works for me, then I love that placebo!