If you have been diagnosed with fibromyalgia (as I have) there are lots of things you can do to feel better.
I was so depressed by fatigue and pain that I was experiencing that I gave up hope of ever feeling good again. First off, please stay sober. Stick with your vitamin regime and keep eating a generally good diet. Try yoga. It has helped me immensely. It makes me stronger and more flexible. Get as much sleep as you can. It's very important in fibro. Listen to your body and don't push yourself, but at the same time, make some exercise or movement a part of your daily life.
There is lots of hope for you to feel better and more energetic.