I have had this for many years. Some of my symptoms have been severe chest pain which feels like a heart attack. Mine seems to be under control unless I am under a great deal of stress or try to lift something that I know I should not.
I've applied for disability because of these conditions, but am told I'm not 'bad' enough, that I can work 40 hrs a week doing data entry...I can't sit a hour without getting stiff, my hands hurt to bad to do 8 hrs of typing a day. If I can't quilt for 8 hrs a day what makes them think I could type for that long?
Be sure to do some exercising daily to keep mobile...I use Richard Simmon's Silver Foxes tape as it is not to fast for a 59 year old to do...or one who is no longer limber enough for all that gyration in the other tapes.
The more I learn about Fibro the more I find it is the cause for other things like toe and leg cramps which I get several times a day.