I may have fibromyalgia coz i have all the signs but want too know does it cause mood swings.
In my experience it can. When you're feeling crumby etc. I think it can naturally get you down and frustration sets in among other things, so its quite normal to feel up and down. Green tea and a hot bath helps! JK 
Thanks jerseykaz i will try that 
hi there,
i agree when i am in a lot of pain my better half knows not to cross me as the slightest remark sends me off the deep end, it can be the most harmful thing but i build mountains out of mole hills. as already mentioned green tea or camamille tea both work. green tea also work for detox for your body. hope this helps it is a trate of this illness.
janet
No offence but its blantantly obvious the answer to your Question.
mood swings,ibs, cramps ,fatigue, pain, headaches, nausea, dizzyness, pins and needles , pain in the jaw , twitches, blurred vision, brain fogg, etc etc ,
the last time i looked for more info onthe net there was 27 symptoms listed all of which i have at differant times thank christ not altogether.