I was recently diagnosed with fibromyalgia. http://www.mayoclinic.com/health/fibromyalgia/DS00079
Here is a link with some information. Maybe you could check it out. Im sure your doctor has already told you a little bit about it, but a lot of times depression and fibromyalgia is linked together along with fatigue. My doctor prescribed me Elivil...its generic but its really, really good. I could feel results within just one day...could be just the good nights sleep that I got. I also suffer from interstial cystitis so im up ever 15 minutes at night using the bathroom. Im on 10mg and it works really well for me. You should ask your doctor about it....its a pain pill/antidepressant and I think its also a sleep aid. I take one pill a night right before bed.
Hope this helped a little.